Dating carnival glass
A final firing of the glass brings out the iridescent properties of the salts, giving carnival glass the distinct appearance it is known for.Most carnival glass insulators, made by Corning Glass Works [Pyrex] and Hemingray Glass Company, typically date from the 1920s and 1930s.They are avidly collected by both carnival glass buffs as well as strictly insulator collectors.(An Indiana blue carnival hen is pictured on that page). Some significant production continued outside the US through the depression years of the early 1930s, tapering off to very little by the 1940s.
For more info on glassware made by Indiana, including carnival, check out this site: Indiana Glass. Often the same molds were used to produce clear and transparent colored glass as well as carnival versions, so producers could switch production between these finishes easily according to the current demand / popularity.
Many types of articles, both ornamental as well as utilitarian, were made with the ‘carnival’ finish, and patterns ranged from simple through geometric and ‘cut’ styles to pictorial and figurative.
Dating carnival glass comments