Glass Information and Education

Zanesville Glass: General term for glassware produced by several firms in and around the town of Zanesville, Ohio in the early to mid-nineteenth century.

Zinc: When oxidized and mixed in a batch of glass will produce a translucent white color.

zipper: A cut or pressed glass pattern that consists of several vertical rows of short, double-dashed or split-cut designs that resemble zippers.

Zwischengoldglas: Literally, gold between glass. A process used on Bohemian drinking glasses whereby engraved gold leaf applied to the outer surface of one glass was protected by being encased in another glass and sealed with resin.