C_GER_ STAINED GLASS PATCHES STAINED GLASS PATCHES Glassware original stained-glass from LAMBERTS GLASSWORKS;WALDSASSEN [BAVARIA]here colored glass used to form decorative or pictorial designs; like a mosaic.This is Genuine-Antique-Glass and -- New-Antique-Glass; still made in the traditional way.Glass silicone plus fixed amounts of nickel; copper; iron and other metals his mixedwith molten glass to produce the colored glass we see.Lamberts Glassworks is the successor; of the Bohemian Waldsassen Glassworks;that was founded ca.1884; which moved to the Upper Palatinate [Bavaria] in 1934