Are Loetz vases signed?

A few are, but most aren’t. Between 1880 and 1940, according to scholars, there doesn’t seem to have been clearly defined rules around when glassware needed a mark or name and how they should be applied. A variety of marks were used, if inconsistently, including marks that had elements of the von Spaun family coat of arms and the more common, but still rare, “Loetz Austria” mark used by the factory. Shop a selection of Loetz vases from top sellers on 1stDibs.