Cameo glass was initially used in Ancient Roman art as an alternative to cameo-designed gem vessels. During the ninth and tenth centuries, it was utilized in Islamic architecture, but the same methods utilized by Roman and Islamic craftsmen have been extinct in antiquity. It is manufactured up of white non-transparent glass with plant and flower designs set against a dark background. The figure patches would be coated with wax or bitumen paint, and the blank part would be immersed in hydrofluoric acid multiple times. After that, the thorough work would be performed with wheels and drills, followed by varnishing and waxing. During the midst of 1877, John Northwood and Woodall refined the procedures and manufactured a lot of exquisite cameo glass. Shifting more towards Art Nouveau designs, the glasswares were still manufactured in the twentieth centennial. Gallé took influence from ancient Cameo glass and created pieces of up to five combined surfaces. On his average creations, he started commercially making Cameo glass in 1899, following the acid etching procedure with Art Nouveau designs at the best quality. Daum Frères' craft was influenced by Gallé at first and was popular for their aesthetic Art Nouveau works. You can find a diverse collection of cameo glass vases for sale at upcoming Bidsquare's online auctions. Bidsquare offers vintage and antique cameo glass vases at auction which are designed by skilled artisans and craftsmen. If you want to begin or add vintage and antique cameo glass vases to your collection, they are widely available for sale on Bidsquare.