identifying slag glass lamps

If youre still unsure if a piece is slag glass, consult with a professional or experienced collector for their opinion. Grandmother's old lamp not "true" slag glass but still catches eye of appraiser to the tune of $300-$400. Slag glass is named after silicate slag, a colorful material that is a byproduct of molten steel. Happy hunting! 2023 LoveToKnow Media. Have any questions? Challinor would instead combine two colors of molten glass. True slag glass was originally produced in England during the last quarter of the 19th century when, simply put, it is believed slag from iron-smelting was added to molten glass to achieve a marbling effect in a variety of colors. One of the most common alternate names for slag glass is marble glass, for obvious reasons. Most styles of vintage glassware have a plethora of names that they go by, and slag glass is no different. Answer: The opaque bent panels of pressed glass with the creamy, golden swirls in your lamp are typically referred to as slag glass. The Pittsburgh Lamp, Brass & Glass Company was assigned at least five lighting-related patents between August 28, 1900 and March 21, 1916. Ruby Red LLC is compensated for referring traffic and business to these companies. 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. Thank you. These colors are created during the manufacturing process and can vary greatly from piece to piece. This common characteristic of slag glass can add to its unique appearance. Two of these patents, numbers 656891 and 774602, clearly depict the SUCCESS burner in their accompanying patent drawing. Stepped marble LAMPS.Two antique Czech glass fruit basket boudoir lamps., Cast spelter metal bases with figural handles, (one pair of handles as is). A more specific title for this type of glass would be mosaic glass. 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. The marbled pattern and swirled appearance of the glass add to its unique appeal and character. Another early slag glass was the purple malachite glass by Sowerby, which was sold in the United States under the name "blackberries and cream." Pictures of both the inside and outside of the lamp. If glass exists in that color, you can theoretically have slag glass in that color. Shades: . If youre looking to add some character to your home with slag glass, heres how to identify slag glass. They started with brown glass, but also produced purple, yellow, green, and blue. If exposed to a black light, the glue residue would show on a newer lamp. The mosaic glass created in Pittsburgh was a mixture of purple and either white or an opal shade. Dont confuse newer pieces with older, vintage ones. Fenton Rose Pastel Hobnail 4 1/2-inch Vase. This is something people will often wonder about. Lamps, lampshades, and chandeliers were very popular uses for slag glass. There are several things to keep in mind when looking to identify whether something is slag glass or not. 10 Easy Steps on How to Identify Slag Glass Step 1: Look for a Marbled or Swirled Pattern One of the easiest ways to identify slag glass is by its marbled or swirled pattern. . But you Handling Antique Glass Antique glass should be handled as if it has been; Glass Repair Repairs to cut glass can be seen with a black; Vintage & New Glass Paperweights Glass paperweights . The number of broken pieces. Your caramel slag glass paneled lamp dates from the 1910s through the 1920s. Many manufacturers used colored slag glass to create elaborate patterns in the lamp bases and shades, while others used the glass to create everyday scenes and landscapes. Then, gently wash the piece using warm water and mild soap. CO. SLAG GLASS LAMP Base marked M.L. With a little practice, youll be able to spot slag glass in no time at all. If you're a collector of antique lighting, you've likely come across slag glass lamps. How to Get Conch out of Shell without Breaking. 1551 Extended Return Eligible. I grew up going to antique stores and markets with my mom and grandmother. Slag glass antique lamps sell between $200 and $2,000, and most of the value is in the light itself. A beautiful pieceno matter the age or valuehas the ability to brighten a room and add character to interior decor. Image 2: Tiffany Studios Patinated-Bronze and Leaded Favrile Glass Poinsettia Floor Lamp. It is a rather nice example of lamps of this type and I would place a value of $300 to $400. 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''. Slag glass was a sought-after material for decorative items from the late 19th to the early 20th century. This byproduct can then be pulverized and used as a glass additive. 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 . Mineral Identification Labels (#185769230073) o***l (1621) - Feedback left by . Imperial Glass introduced its iridescent (carnival) glass line in 1909. This type of art glass is highly sought after by collectors, so its definitely worth taking the time to learn how to identify it. Some well-known slag glass manufacturers include Sowerby, Davidson, and Greeners. This type of glass was used to make all types of glassware, including panels for lamp shades. Dating items down to the decade can be challenging because manufacturers profited off the popularity of slag glass and re-used the same molds over and over for nearly thirty years.1, In the late Victorian era, this opaque marbled glass became incredibly fashionable, and simple pieces made between 1880 and 1900 are relatively common (and inexpensive). For example, slag glass pieces with distinct marbling patterns or interesting shapes may be more valuable to collectors. If the item does not have any names or marks, the piece likely is a fake. A Fenton hobnail 4 1/2-inch vase can go for $15 to $50. If the base color is brown, purple, blue, or green theres a decent chance that it is a vintage make. Many lamps are marked as much as three times (on the base, shade, and metal fitter rim). This leads to marbling in the colors of the glass. The Historical Museum Saar is the museum on Saarland's history. Slag glass, also known as marble glass or malachite glass, is a type of opaque, streaked pressed glass. Quezal shades were often used in groups on a table lamp or chandelier. How to identify a slag glass lamp. Check out nostalgic collectibles from one of America's most successful direct sales companies. I think the one c stands for a casting company. This website is using a security service to protect itself from online attacks. Vintage slag glass is a lot more restrictive in color options than recently produced pieces are. They also began producing opaque golden, creamy colored glass known as caramel slag that allowed the passage of enough light to give a room a soft, warm, golden ivory glow. The action you just performed triggered the security solution. Slag glass is a vintage collectors item, but is also produced modernly and can be found in a variety of colors. When looking to purchase real slag glass, look for the marks of the manufacturer. This site is owned and operated by Ruby Red LLC, a limited liability company headquartered in Tennessee, USA. It is relatively easy to identify slag glass if you know what to look for. Instead, the glassmaking duo from Pennsylvania combined two colors of molten glassone white and one opaqueto create the same marbled effect. Our up-to-date information will give you an accurate understanding of your items' worth. The older piece, the greater value it has. 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. Mosiac glass is sometimes used interchangeably with slag glass, although there are some technical differences. Instead of slag, they mixed purple glass with a white-colored glass that did not contain any iron slag. 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. One of the most common applications of vintage slag glass is in lighting. If the glass is opalescent (has more than one color), it is probably made after 1880. Early examples of slag glass already came in a variety of colors, but modern styles of mosaic glass are available in a seemingly endless array of hues and shades. Glassmakers have achieved a similar-looking marbled effect to slag by simply mixing two different colors of glass together. Slag glass lamp repair By Len Daley. Slag glass, also known as marble glass or Cinderella glass, is an opaque, swirl-patterned glass. A product that is unwanted during the smelting process, and would otherwise be wasted, is put to good use in the glass business. They may have additional insight or knowledge on identifying slag glass. But before you buy or start working with slag glass, it is important to know how to identify it correctly. The term mosaic glass is much more inclusive and includes these pieces that look like slag glass but dont actually contain any slag. Most slag glass replacement panels are completed the same week. 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. It has become a sought after collectible for its unique appearance and history. Happy collecting! IDENTIFY SHADE DESIGNS Glass Type. ALL RIGHT RESERVED. Slag glass was extremely popular when used to create lampshades. 2)Inspect the color: Vintage slag glass can really only be found in brown, purple, green, and blue. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. M.L. The lustrous glass often had threads of glass in contrasting colors pulled through the surface to form a feather shape. Explore other items from ourAntiques & Collectibles Price Guide. There are several things to keep in mind when looking to identify whether something is slag glass or not. This incredible glass. With these tips in mind, you should be able to know how to identify slag glass. Brown malachite slag glass pieces are the rarest and most coveted colors of slag glass. 1235 - 8 1/2 Florentine White Moonstone Vase Lamp. Most homes in the late 19th century and even some older homes today could be found using a slag glass lampshade as decor. This is a big part of why slag glass is so valued today. Slag glass is named after silicate slag, a colorful material that is a byproduct of molten steel. Color, age, and manufacturer are definitely important in determining the value of a vintage piece. Slag glass is often cut and shaped by hand, leading to irregularities in shape and uneven edges. Shade measures 7 1/4" x 16 1/2". Mixing antique pieces with modern amenities is a popular decorating technique.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'antiqueanswers_com-large-leaderboard-2','ezslot_8',165,'0','0'])};__ez_fad_position('div-gpt-ad-antiqueanswers_com-large-leaderboard-2-0'); Jeannette Glassware, originally Jeannette Bottle Works, was founded in 1888. His masterpiece is the Lutheran Ludwig's Church, which stands at the centre of a rectangular plaza. Browse Similar. Antique lamps showing identification by Handel, Pairpoint, Tiffany, Pittsburgh Pilabrasgo Co., Duffner, Van Briggle, or Fulper show a collectible lamp. The price of slag glass ranges considerably from five dollars for small slag glass pieces, to antiques that would garner hundredsif not thousands of dollars.

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