Imperial Glass introduced its iridescent (carnival) glass line in 1909. Popular slag glass lampshades shapes included mushroom, dome and flower petals. Slag glass antique lamps sell Between $200 and $2,000, and most of the value is in the light itself. In exceptional condition. Slag glass of other colors is unlikely to be an antique. 1551 Extended Return Eligible. 1230C - 10 1/4 Ceramic Green Tone Vase Lamp. antique lamp parts, sockets, and prisms - Laurel Leaf Farm They bring a sense of the past into a home and they add a pop of color. Manufacturers experimented with different methods to achieve this malachite-like look. These are just a few of the companies that produce authentic slag glass. Its no surprise that this style is most typically referred to as marble glass. If green-colored glass called the 'slag' is used to make the stained glass, it's probably made in the early 1900s. If the item is in good condition, with no cracks, discoloration, or signs of neglect, it will be worth more. France, Late 19th Century. Slag glass was extremely popular when used to create lampshades. This roughness is caused by the recycled materials that make up slag glass, making it different from smooth stained or flashed glass. Have any questions? This is listed on the bottom of most slag glass items, especially lamps. If the item does not have any names or marks, the piece likely is a fake. Inspect the glass closely and see if you can spot tiny specks of color - known as 'confetti' glass - a sure fire sign that the lamp is genuine. This material takes on different colors depending on the minerals and elements that are present in the iron. Would anyone know the company that might of cast this lamp base? How to Tell if You Have a Lamp That's Worth Money - The Nest Happy cleaning! In addition to some examples shown below on this page, you can also search our price guide for your own treasures. Antique lampshades are perhaps one of the most common fixtures for vintage and valuable slag glass. There continues to be a vibrant market for antiques of all varieties due to their breathtaking beauty and exquisite designs. Always remember to inspect glassware in a room with good lighting. While it may not be as popular as other types of glass, slag glass is beautiful in its own way. Prof. Busch working group is focused on solid metallic glass and biomaterials. Spelter Newel Post Lamp w/ Czech Glass, FRENCH ART DECO SPELTER FIGURAL LAMP, Circa. An Identification Guide for Beginners, Atlas Mason Jar Identification and Value Guide, Vases, Compote, Creamer, and Bowls, Lot of 7. Caramel colored slag glass lamp shade on light brown painted foliate design two lighted lamp base with pull chains, no marks found. Antique Lamps Online | Antique Vintage Lamps As molten iron cools, a silicate slag forms on top of it. Happy collecting! It has distinctive a distinctive knob pattern and comes in a variety of colors. An avid antiques collector herself, Kate has written about antiques for many years. Take a walk down the brick-lined memory lane with these vintage Lego sets. They still wanted the white streaks, and so they mixed purple glass with a white, opal-y, colored glass. I think the one c stands for a casting company. $1,551 57% Off $3,600. This antique glass is known by other names including: Brown malachite Brown marble vitro porcelain Mosaic glass Marble glass Variegated glass Image Credit What Is Slag Glass Made Of? Slag glass is pressed and untempered glassware, much like depression glass. One of the most common alternate names for slag glass is marble glass, for obvious reasons. Real slag will always have a creamy marble effect. The older it is, the higher in cost. Vintage Slag Glass Lamp Antique Boudoir Lamp Slag Glass Lamp Arts & Crafts Lamp Art Nouveau Vintage Lamp Ornate Lamp 5 out of 5 stars (115) $ 375.00. This is one of the most common uses for slag glass, and you'll see many slag glass chandeliers and other fixtures in antique shops. The key identifying feature of this type of glass is its similarities to the patterning found in natural marble. Doyle New York, New York, NY (September 2004) Check for flaws in the glassware 6. Amber Caramel Slag Glass Hanging Swag Lamp Light Lighting Fixture 70's 1970's. $74.99. 3. The value of slag glass antiques ranges from $20 $20,000. Electrified with hanging chain, Arts and Crafts style hammered brass andArts and Crafts style hammered brass and slag glass lamp unmarked early 20th century; with green slag glass panels and reticulated shade square base 26 Slag glass producers mark their products with the companys initials or the companys logo. Add to Favorites Tiffany Style Bent Glass Tulip Green and Beige Slag Glass Hanging Lamp Ceiling Fixture Restaurant Light 18.5" w x 11" h 5 out of 5 stars (218 . Find Fenton markings 3. 2023 LoveToKnow Media. Share via E-Mail; Share via Pinterest; Copy Link; 1930s Traditional Slag Glass Lamp. Tiffany lamps: How to tell real from fake - Antique Trader These lamps rarely sell for less than 100 dollars. Large Signed Rousseau Art Nouveau Figural Lamp w/ Slag Glass Petal Shade. If exposed to a black light, the glue residue would show on a newer lamp. Your IP address cannot be used to identify you. On the other hand, slag glass can easily leave people confused. Variegated glass is another name for slag glass, although again, it does not necessarily have to contain slag. When iron-ore is smelting during steel production, the remaining residue is a glass-like, glossy material. Hanging Slag Glass Lamp, ca. Happy collecting! Cloudflare Ray ID: 7c0b058ee94819fc These colors are created during the manufacturing process and can vary greatly from piece to piece. This website uses cookies to improve your experience. Generally only old lamps feature a brass collar. The wiring is not original to the lamp; originally it would have had cloth covered wire. Remember, the most common way to make slag glass was by skimming silicate material from the top of molten iron. The older piece, the greater value it has. Sowerby also created several other color formulas including Giallo (yellow), Pomona (green), and Sorbini (blue). CO. SLAG GLASS LAMP Base marked M.L. CO. SLAG GLASS LAMP Base marked M.L. Slag glass gets its name from slag. American Gilt Spelter Figural Putto Lamp, Pair of Louis XVI Style Patinated Spelter, 19C. Antique Purple and White Slag Glass Cake Stand, Antique EF Industries Green Slag Glass Table Lamp. 4. Serious antique glass collectors will be familiar with "slag glass" which became popular in the late 1800s and is still made today. The value of slag glass items can also be determined by the condition of the item. . This list is limited to only a few results.Many more items are available to our members through our Signed slag glass tends to be worth more than unmarked slag glass. Prices go up significantly if a light is signed by a prominent manufacturer like Tiffany Studios or, to a lesser extent, Bradley & Hubbard. Peachblow was produced between 1955 and 1963. The SUCCESS burner was Pilabrasgo's "claim to . The marbling is sometimes compared to tortoiseshell. Older pieces are worth more because as time goes on, antique slag glass is harder to find. LAMP SHADE - Leaded slag glass lamp shade, TABLE LAMP - A four panel, dark green slag. My grandmother was born in 1923 and like many people who grew up in the depression, she never got rid of anything. Vintage slag glass is a lot more restrictive in color options than recently produced pieces are. 210.180.118.189 These colors are created through different repurposing techniques. This is something people will often wonder about. Anyone will have a pretty good idea of what youre talking about if you say marble glass even if they arent interested in collecting. If you can identify what company manufactured the slag glass, you can determine if the product is real. eBay (258) Magazine. If you're examining a glass kerosene lamp, look for a brass collar. Caramel 'Slag Lamp' Value Lights Up - Antique Trader 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 . Free shipping for many products! Compare the texture, pattern, and color of the glass with known slag glass pieces to differentiate it from other types of opaque glass. Slag glass is a beautiful and unique material that can be used to create stunning works of art. Tiffany . 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 . Cavo is the author of Love Immortal: Antique Photographs and Stories of Dogs and Their People. Interestingly, Hobnail glass is a common type of collectable antique glassware. These patterns are created during the manufacturing process and give slag glass its unique appearance. Tiffany, Roycroft or Steuben lampshades made with slag glass can command prices of up to $20,000. Included one glass screen with crack with figures of 2 seated nude maidens either side of center lamp with multi-color glass globe shade, no visible markings. Jeannette Glassware, originally Jeannette Bottle Works, was founded in 1888. The worth and value of slag glass varies. Check out nostalgic collectibles from one of America's most successful direct sales companies. But in case you are looking for a list of vintage lamp manufactures from the mid-1800s to the present day, we've provided that below. Metal issues or glass issues I may not see in the pictures. Heres the full list of other names used to describe slag glass over the years: Items made of slag glass are too many to mentionfrom antique light fixtures and candle holders to lampshades, picture frames, dishes, vases, bowls, pots and much more. Slag glass was originally created in the United Kingdom in the 1890s by adding this slag substance during the glass-making process. 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. Unique antique lamps, especially those made during the Victorian era, had glass that was hand blown. EARLY 20TH CENTURY SLAG GLASS LAMP | Pricing Guides Dictionary & Values Figural Spelter Lamp, boy holding a cornucopia, ART DECO FIGURAL MAIDEN TABLE LAMP: Patinated, ORIENTALIST AUSTRIAN COLD PAINTED SPELTER, Sgd. Hold the glass up to a light source, and you should be able to see the light passing through, albeit with a mottled or cloudy appearance. On the other hand, Tiffany Studios decorative items sold for several thousand dollars. [more like this] FIGURAL SLAG GLASS TABLE LAMP: Patinated 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''. Where the slag is really concentrated it will appear milky white. The pieces produced are of a very similar style and quality, and it can be difficult to identify exactly where a vintage piece was originally produced. A reader sent me the above photograph with a request that I identify the above lamp. Thanks for reading! Slag Glass Panel Lamp By the Empire Lamp Company with Two Color Shade. Imperial's success was guaranteed by one its first orders -- approximately 20 different items to be supplied to almost 500 F. W. Woolworth stores. This is the most difficult distinction to make if youre not a professional. Vintage lamps will show typical signs of aging, such as patina on the metal . How to Identify an Antique Oil Lamp | Hunker How to Identify Slag Glass Types and Worth | Heirlooms at Home The base of slag glass is an opaque color, and the streaks are typically a milky white or cream color. When looking to purchase real slag glass, look for the marks of the manufacturer. Tiffany Lamps: Price Guide and How to Identify an Original - Invaluable