Carnival glass bowl in 'Diamond Ring' pattern by Imperial Glass Company

This carnival glass bowl was produced by the Imperial Glass Company during the early 20th century, specifically around the 1910s to 1920s. Carnival glass earned its name because it was often given away as prizes at carnivals and fairs, making it accessible to the working class. The iridescent finish was achieved by spraying metallic salts on the hot glass surface, creating the distinctive rainbow sheen. The 'Diamond Ring' pattern features geometric designs that were popular during the Art Deco era. Carnival glass remains highly collectible among glass enthusiasts and antique collectors who appreciate its historical significance and beautiful iridescent qualities. The smoke or marigold coloration with its rainbow iridescence is particularly sought after by collectors specializing in American pressed glass. These pieces represent an important period in American glassmaking history when manufacturers sought to create affordable alternatives to expensive Tiffany iridescent glass.