Glassware Makers Marks and Signatures on Antique Glass and Collectible Glassware
An Introduction to Jeannette Glass Company: Jeanette Glass Company "J in a Square" Mark as Seen on the Bottom of an Ice Cream Glass
Vintage Blenko Product Catalogs | Blenko Glass Company
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Glassware Marks and Signatures: Westmoreland Glass Company
Glass Company, Carnival Glass, Sideshow, Marigold, Cosmos, Sideboard, Pennsylvania, 1920s, Bowls
Most Fostoria pieces are not marked and must be identified by the pattern and/or etching.
Purple Boston and Sandwich Glass Company Pairpoint Cup Plate Factory Building #PairpointMtWashington
Fostoria Glass Company Mark
Heisey H in diamond mark. Not all pieces were marked, some have lost their paper labels. - Very high quality glass, many clear, many etched. Can be easily mistaken for crystal.