identifying slag glass lampsidentifying slag glass lamps

This roughness is caused by the recycled materials that make up slag glass, making it different from smooth stained or flashed glass. Look for age-related wear or markings on accompanying hardware, such as lamps or furniture. Always remember to inspect glassware in a room with good lighting. Starting in the late 1800s and through the mid-1900s, both England and U.S. manufacturers were creating slag glass both with and with the use of iron slag. 9. The chart below highlights some recently sold slag glass items. This is the most obvious giveaway when trying to spot slag glass. Glass Collectible Antique Lamps, Glass Tobacco Pipe, Coca-Cola Glasses; Additional site . The light shining through the marbled color creates a really unique effect. The action you just performed triggered the security solution. Lot 167 : Roycroft/Dard Hunter Extremely Rare Table Lamp, Rago Arts and Auction Center , Lambertville, NJ Est: $40,000-$50,000 . Look for any imperfections or bubbles in the glass, which can indicate it is not true slag glass. Spelter Newel Post Lamp w/ Czech Glass, FRENCH ART DECO SPELTER FIGURAL LAMP, Circa. Two glassmakers in Pennsylvania, Harry Northwood and Thomas Dugan, were the first to imitate slag glass by mixing two colors of glass together and forgoing the actual slag in 1902. Happy hunting! 2023 LoveToKnow Media. #2. Figural Spelter Lamp, boy holding a cornucopia, ART DECO FIGURAL MAIDEN TABLE LAMP: Patinated, ORIENTALIST AUSTRIAN COLD PAINTED SPELTER, Sgd. Cavo is the author of Love Immortal: Antique Photographs and Stories of Dogs and Their People. Doyle New York, New York, NY (September 2004) But what makes a slag glass lamp collectible, and how can you tell if you have a genuine antique? Color, age, and manufacturer are definitely important in determining the value of a vintage piece. The key identifying feature of this type of glass is its similarities to the patterning found in natural marble. They bring a sense of the past into a home and they add a pop of color. Exceptional lamp. The marbling on originals will always be uneven and more creamy than white. A Hanging Slag Glass Lamp, circa 20th Century Six sides of milky slag glass in a metal frame with a copper finish. ART DECO FIGURAL LAMP WITH ART GLASS SHADE: An oil burning lamp raised on a brass fluted. There are three ways to differentiate vintage slag or mosaic glass from modern iterations: 1)Examine the marbling pattern: While both new and older pieces will have a marble look, its certainly not enough to spot an antique. Imperial's success was guaranteed by one its first orders -- approximately 20 different items to be supplied to almost 500 F. W. Woolworth stores. Prof. Dr. Ralf Busch | Faculty of Natural Sciences and Technology One of the most common applications of vintage slag glass is in lighting. She added custard glass to the company's color line in 1969 and iridescent (carnival) in 1972. . Slag glass is a beautiful and unique material that can be used to create stunning works of art. Art nouveau floral filigree frame shade coloured glass reservoirs and clear glass chimneys, 90cm high/Provenance: Tidenham Manor a lantern, arts & crafts style green glass shade. blue marblised base with circular frosted glass shade, 27cm high spelter figure of a maiden with outstretched arms lying on a hollow art deco design base, single socket fixture, 10 3/4'' h. x 19'' x 8 1/4''. Slag glass is not completely opaque like frosted glass. Question: Im looking to find some info on this slag glass lamp. You may also wish to polish the piece with a small amount of mineral oil for added shine and protection. Art nouveau floral filigree frame shade. Theres a fairly large price range for slag glass, with intricate vintage lampshades fetching the highest price. Eventually, it became known as slagware or slag glass. The 10 Best Things to See and Do in Saarbrcken, Germany - Culture Trip Image 1: Tiffany Studios Hanging Head "Dragonfly" Floor Lamp. If you're a collector of antique lighting, you've likely come across slag glass lamps. Recent Activity. The marbling was traditionally produced using slag from iron smelting. In this case, the slag used for marbling glass is produced when iron is heated during the production process. They are a great way to add color to any room. It has distinctive a distinctive knob pattern and comes in a variety of colors. Most homes in the late 19th century and even some older homes today could be found using a slag glass lampshade as decor. Get the best deals on Amber Glass Lamp In Collectible Ceiling Light Fixtures when you shop the largest online selection at eBay.com. Both beautiful and elegant in their own regard, stained and slag glass are actually completely different. Check for flaws in the glassware 6. Tiffany, Roycroft or Steuben lampshades made with slag glass can command prices of up to $20,000. Thank you. How to identify a slag glass lamp - mylampsale.com FIGURAL SLAG GLASS LAMP. When looking to purchase real slag glass, look for the marks of the manufacturer. The value of slag glass can vary greatly depending on factors such as age, condition, and rarity. Two of these patents, numbers 656891 and 774602, clearly depict the SUCCESS burner in their accompanying patent drawing. Malachite / Slag Glass Identification Guide + Gallery George Davidson is believed to have made this brown buglein the late 19thcentury, one of the first pressed glass pieces known today. This list is limited to only a few results.Many more items are available to our members through our Tiffany Lamps: Price Guide and How to Identify an Original - Invaluable The following research topics are of particular interest: Physical metallurgy; Thermodynamics and kinetics of metastable phase; Solid metallic glasses; . These patterns are created during the manufacturing process and give slag glass its unique appearance. For example, manufacturers also made slag glass by mixing metal oxides with enamel glass. If the item does not have any names or marks, the piece likely is a fake. This wouldnt be considered slag glass in the strict traditional definition, but many collectors will still use the term to refer to any marbled, opaque, pressed glass pieces. This type of art glass is highly sought after by collectors, so its definitely worth taking the time to learn how to identify it. The molten glass is placed into forms and then pressed to get the right shape and emboss the surface with a pattern. rim, lamp is 20'' long x 11'' long. column support set beneath an opaque glass fount with painted silhouette bird and foliate detail and with a spherical etched glass shade and clear glass chimney together with search our price guide for your own treasures. Both styles create the same swirl effect, and originals of both are considered vintage and valuable. He has extensive experience in the field of buying and selling antiques and collectibles. Of course, no discussion of antique lamps is complete without the Tiffany Pond Lily Lamp, circa 1903, which sold at auction in 2018 for a record-breaking$3.37 million. Tiffany lamps: How to tell real from fake - Antique Trader You may find one for as cheap as $230, but very rare pieces will definitely attract collectors and drive up prices into the thousands. Vintage Lamps and Lighting. The visual marbling of this slag is reminiscent of slag glass, however, the presence of actual slag in slag glass pieces depends on how it was created. Add To Cart Description. It is a rather nice example of lamps of this type and I would place a value of $300 to $400. Companies continued to make slag glass items well into the mid-20th century. Leave it in the comments below! Find many great new & used options and get the best deals for Cabinet-Sized Slag Glass Specimen E1700 at the best online prices at eBay! Prof. Busch working group is focused on solid metallic glass and biomaterials. Some handmade collector marbles are small works of art that can command big prices. The permanent exhibition traces the changing fortunes of the border region from Franco-German war of 1870/71 to the affiliation of Saarland to the Federal Republic of Germany in 1957. Amber Glass Lamp In Collectible Ceiling Light Fixtures It is important that you can recognize the authenticity of the item you are looking to buy. Opalescent or iridescent glass can be worth more. Imperial Glass introduced its iridescent (carnival) glass line in 1909. Verna Mae Wright died in 1990. Antique Glass Insulators and Their Electrifying History, Antique glass insulators are a low cost but very popular collectible that come in a myriad of fun shapes and colors. The factory at one time was owned by the former West Virginia Glass Company. Performance & security by Cloudflare. Look for labels indicating the glass is made from recycled materials, such as Cinderella or marble glass.. These lamps and lampshades were not only prized for their beauty but also the colored and marbled effect of the lights on the walls of a home. Other manufacturers quickly caught on and the style rose in popularity soon following its creation. See the patent table below for details. The marbled effect is gorgeous on its own, but shining light through a complicated and colorful design is even more stunning. These beautiful pieces of functional art were popular in the late 19th and early 20th centuries, and today they remain highly sought after by collectors. Most pieces are decorative in nature, sprucing up side tables and bookshelves. They started with brown glass, but also produced purple, yellow, green, and blue. In some of the most stunning lighting pieces, small pieces of the slag glass were laid out in a metal framework. Antique Lamps Online | Antique Vintage Lamps Identifying Slag Glass. It wasnt longer before Davidson, Sowerby and other glass makers began experimenting with different colors, combining streaks of creamy opal with purple, yellow, blue, and green. Slag glass is often cut and shaped by hand, leading to irregularities in shape. Prices go up significantly if a light is signed by a prominent manufacturer like Tiffany Studios or, to a lesser extent, Bradley & Hubbard. Polly Pocket toys may be small in size, but they're big on value. I think the one c stands for a casting company. Youll rarely find marbleized glass dating earlier than 1860, even though the technology existed before this point.2. Would anyone know the company that might of cast this lamp base? Sowerby also created several other color formulas including Giallo (yellow), Pomona (green), and Sorbini (blue). This$13,464 pair of slag glass lampson Etsy is one example, along with this complete setfrom the Hilltop Steakhouse in the United States, being sold for an even $15k on eBay. ALL RIGHT RESERVED. Manufacturers experimented with different methods to achieve this malachite-like look. [more like this] A pair of figural spelter oil lamps, with (Source). Most companies have halted the production of slag glass items altogether. Thanks for reading! Happy collecting! List of Vintage Lamp Manufacturers - RetroWaste This being the glass version rather than stone, it makes sense to call it how you . Ruby Red LLC is compensated for referring traffic and business to these companies. Designers would create intricate stained glass style patterns and scenes within lampshades. Identifying the Base. The slag glass on this lamp is primarily white, which affects the color of the cool light cast by the light bulb. Hopefully, these tips will help make your search for slag glass a successful and enjoyable experience. Slag glass pottery and ornaments are perhaps one of the best examples of this, as they are two of the most common types of slag glass found in modern homes. L. G. Wright Glass - Guide to Value, Marks, History - WorthPoint $24,900.00. Whether you just found the slag glass table lamp of the century in the back barn or at an estate sale. I'm Stacy Jones and I love antiques! The original slag glass is brown with creamy streaks, a similar pattern to how your cup of coffee looks when you first pour in milk or creamer. Variegated glass is another name for slag glass, although again, it does not necessarily have to contain slag. Typically vintage pieces will be worth the most, but some collectors may still value the piece. If you love the look of slag but dont want to pay extra for vintage, or are looking for a higher variety of options, check out some of the more recently produced glass pieces. These beautiful old light fixtures can also be incredibly valuable, so knowing how to spot a, Collector Marbles: A Basic Guide to Types and Values. Overview. The key to determining if a piece of glass is true slag or just a handsome example of pressed glass is to look for glass that is obviously and richly marbled rather than simply colored or streaked. Have any questions? Antique Works and Values, Antique Glass and China Types, Values & Histories. Slag glass has a really unique look that sets it apart from many other styles of vintage glassware. 100s Of Great Lamp Sockets - Original Antique Lamp Socket Tutorial H. Scantily clad figure stretching to support the shade. The lamp stands 20.5" tall and weighs only 4 lbs in total. Add your item here. Here is everything that you could ever want to know about slag glass. The marbling should be a creamy white color that is evenly mixed into the base color. Some famous makers include Tiffany Studios, Bradley Hubbard, and Handelwhose originals in good condition are very sought after. Metal issues or glass issues I may not see in the pictures. A well-crafted piece of slag glass with the right ratio of additive and correct amount of mixing will strike the perfect balance between looking too chunky and looking too homogenous. It was my grandmothers and is over 60 years old. Fenton Glass Collecting Guide [Identification & Values] - Heart Hanging Slag Glass Lamp, ca. Mosiac glass is sometimes used interchangeably with slag glass, although there are some technical differences. Slag glass pieces can sometimes be found at flea markets, antique stores, and online marketplaces. 2)Inspect the color: Vintage slag glass can really only be found in brown, purple, green, and blue. This is a big part of why slag glass is so valued today. Telling slag glass apart from other styles is actually quite simple. AMERICAN EARLY 20TH CENTURY SLAG GLASS LAMP, Nice, original 8 panel caramel slag glass, 384. This website is using a security service to protect itself from online attacks. Lamps, lampshades, and chandeliers were very popular uses for slag glass. Co. 240, rewired, new AMERICAN EARLY 20TH CENTURY SLAG GLASS LAMP With a 16 inch slag Nice, original 8 panel caramel slag glass lamp, circa 1920-30, in 384. Start architect Friedrich Joachim Stengel has shaped Saarbrcken's cityscape like no other. It is relatively easy to identify slag glass if you know what to look for. IDENTIFY SHADE DESIGNS How To Identify Slag Glass Antiques Not all glass pieces are clearly marked. The Historical Museum Saar is the museum on Saarland's history. In the early 20thcentury, Thomas Dugan and Harry Northwood were the first to make imitation slag glass, called mosaic glass. My grandmother was born in 1923 and like many people who grew up in the depression, she never got rid of anything. Instant Appraisal and makers marks for Slag Glass Lamp | Antiques When identifying authentic slag glass, pay close attention to the marbling. Caramel 'Slag Lamp' Value Lights Up - Antique Trader The marbling is sometimes compared to tortoiseshell. These are 2" in diameter at the fitters, and 1 . Assuming you have a table lamp with a large painted glass shade, then your shade should measure as 14, 15, 15.5, 16, or 18 inches. In addition, slag glass panels were used in lamps, jewelry boxes, and other collectibles. How to tell if stained glass is real? (Quick Tests!) - Crafting Pal Instead, the glassmaking duo from Pennsylvania combined two colors of molten glassone white and one opaqueto create the same marbled effect. Related Posts: Plated Amberina - Rare, Colorful Art Glass Plated amberina glass, with color that graduates from amber to; Glass Paperweights You cannot fix a cracked snow dome paperweight. They moved across the Ohio River to Williamstown, West Virginia, and built a . Real slag will always have a creamy marble effect. Free shipping on many items . The church is not only the city's most renowned landmark but also stands alongside Dresden's Church of Our Lady and St Michael's . 2. This leads to marbling in the colors of the glass. This is the most difficult distinction to make if youre not a professional. Some stained glass pieces may appear very similar to all of the small pieces in beautiful patterns. Take extra care to avoid leaving any streaks or marks on the surface of the slag glass. Generally only old lamps feature a brass collar. When iron-ore is smelting during steel production, the remaining residue is a glass-like, glossy material. Answer: The opaque bent panels of pressed glass with the creamy, golden swirls in your lamp are typically referred to as slag glass. Some later manufacturers include Boyd, Imperial, and Westmoreland. This glassy residue would vary in tint and colordepending on the minerals and chemicals used in steel production, resulting in a glossy, opaque, marbled effect. Handel lamps with metal overlays over slag glass are from the company's "Teroca Ware" line. There are several things to keep in mind when looking to identify whether something is slag glass or not. They still wanted the white streaks, and so they mixed purple glass with a white, opal-y, colored glass. With the first versions of slag glass being an opaque brown with cream to caramel-colored streaks, slag glass is also known by the names of brown malachite or brown marble vitro porcelain (brown marble). Have you ever wondered what someone meant by slag glass? Slag glass is named after silicate slag, a colorful material that is a byproduct of molten steel. Dont confuse newer pieces with older, vintage ones. Those who love, buy, or collect antiques will tell you that while price and value are important, they are really only half the battle. . 2022 HEIRLOOMS AT HOME & AGELESS HEIRLOOMS. Ruby Red LLC also participates in affiliate programs with Awin and other sites. Where the slag is really concentrated it will appear milky white. In this guide, we'll explore the history and characteristics of collectible slag glass lamps. Vintage pieces can also be commonly found in a dark purple color. Very similar to the photo on page 182 of Paul Crist's book. If you're looking for a softer glow in your room, install an amber light bulb to create a warmer light. Remember, there is no right or wrong way to identify slag glass. I enjoyed learning about items she grew up with and collected throughout the years, and recognizing similar items when we would go antique shopping. Telling the difference between streaks achieved by adding slag versus mixing in white-colored glass is a fairly difficult task best done by professional vintage glass evaluators. Copper tone spelter. Lamp measures 5 1/2'' h. x 11'' x 5'', globe measures spelter figure of a standing woman on art nouveau style base, double socket fixture, no visible makers mark, 23 3/4'' h. x 7 1/2''. Don't miss out on this valuable resource - visit our research tools today! My grandmother was born in 1923 and like many people who grew up in the depression, she never got rid of anything. A beautiful pieceno matter the age or valuehas the ability to brighten a room and add character to interior decor. Can you Tiffany Lamp Sells High Michaan's Auctions in California . 1. Slag glass is often used as a catch-all term for any type of pressed glass that is opaque and colorful, but not all glass that fits this description is true slag glass. This would still give the marble effect without the use of actual slag. This pattern looks like clouds or waves and can range from subtle to bold. If the metal is shiny, the glass is pristine, and the lamp generally looks newer overall, it might be a reproduction. Antique Slag Glass Lamps | Collectors Weekly The term slag refers to the molten run-off that is produced during iron smelting as the metal cools off. The lustrous glass often had threads of glass in contrasting colors pulled through the surface to form a feather shape. Challinor would instead combine two colors of molten glass. This website uses cookies to improve your experience. Slag glass antique lamps sell Between $200 and $2,000, and most of the value is in the light itself. Slag glass can be easily confused with other types of opaque glass, such as frosted or flashed glass. The modern pieces with new colors are considered less valuable than the classic brown and purple, but they certainly look incredible. Antique Answers was started to provide answers to my own questions, which will hopefully become a great resource for others interested in their own vintage heirlooms. Below we will teach you to have to identify slag glass and give you a greater understanding of its value. The dimensions Length x Height. Take a walk down the brick-lined memory lane with these vintage Lego sets. This will ensure that the money you are spending is worth it. Slag is a somewhat unusual word, and unless you really know your glassware, the term Slag Glass probably wont ring a sort of bell at first. The older it is, the higher in cost. These colors are created during the manufacturing process and can vary greatly from piece to piece. Its important to note that newer slag glass pieces may not have as much character or value as older ones. Wonderful petite, Original 1910-1920's slag glass lamp, shows, REVERE Copper and slag glass lamp, its faceted. If youre looking to add some character to your home with slag glass, heres how to identify slag glass. In addition to some examples shown below on this page, you can also search our price guide for your own treasures. Caramel colored slag glass lamp shade on light brown painted foliate design two lighted lamp base with pull chains, no marks found. Handel Lamp Authentication Guide | Identify Handel Lamps | Handel Lamps American Gilt Spelter Figural Putto Lamp, Pair of Louis XVI Style Patinated Spelter, 19C. Depending on the rarity of the item, slag glass is worth anywhere from $50 to $1500. As technology and manufacturing changed over time, new colors have been introduced to the slag design. The worth and value of slag glass varies. $1,200 Sale Price 14% Off . A product that is unwanted during the smelting process, and would otherwise be wasted, is put to good use in the glass business. This is because the top manufacturers of the day often did leave any identifying brand marks on the fixtures. By following these tips, you should be on your way to spotting slag glass like a pro. Rainaud, and Tiffany Studios. Slag glass has something that cannot be found in imperial glass, uranium glass, milk glass, depression glass, carnival glass, or any other type of vintage collectors glassware. I grew up going to antique stores and markets with my mom and grandmother. Lamp measures 5 1/2'' h. x 11'' x 5'', globe measures. Your caramel slag glass paneled lamp dates from the 1910s through the 1920s. Look for manufacturing labels and company embossed stamps and raised imprints on the lamp. Be sure to leave us a comment. How To Identify Slag Glass by Dr. Lori - YouTube Slag glass is often cut and shaped by hand, leading to irregularities in shape and uneven edges. The company, based in Jeannette, Pennsylvania, rebranded in 1898 and took on the name Jeannette Glassware. Although, the majority of slag glassware was created as decorative pieces. 2002-2023 LoveToKnow Media. 100 Professional Tiffany-Slag Curved Glass Repairs Image 2: Tiffany Studios Patinated-Bronze and Leaded Favrile Glass Poinsettia Floor Lamp. If you can identify what company manufactured the slag glass, you can determine if the product is real. You can find antique slag lighting fixtures for sale on websites such as Etsy for as low as $20 or as much as $16,000. Stidwill's Antiques. -Cracked, repaired, or otherwise damaged shades have virtually no value. Make an offer . Gothic Revival Slag Glass Panel Table Lamp by Bradley Hubbard Hubbell Sockets Bradley & Hubbard Bookends-Ancient Greek Temple Columns & Arch Gadrooned and Reeded Silverplated Bronze Sconces by Bradley & Hubbard, c. 1910s Six Arm Adam Style Chandelier in Antique Nickel by Bradley and Hubbard, c. 1920s Modern day slag glass manufacturers in the U.S. include Fenton, Mosser, Summit and Boyd Glass. Assuming your lamp isn't marked, then we have to move onto other steps to figure out if it is authentic. Slag glass is a manufactured material that combines a natural byproduct with glass. Look for a Fenton tag (used before 1970), look for the Fenton mark ("Fenton" in an oval), look for "F" in an oval, indicating another company's mold was used (1983+). Some well-known slag glass manufacturers include Sowerby, Davidson, and Greeners. Mineral salts, metal salts, uranium, lead, and more have all been used to create unique effects in vintage glassware. Slag glass is a term used to describe a type of colored pressed opaque glass made using the "slag" left over during the iron smelting process.