Superfest

Superfest, also called CV-Glas or Ceverit until 1980, was a brand of drinking glasses from the German Democratic Republic (GDR). Due to being made of chemically strengthened glass, they were notably strong. The Superfest glasses were produced between 1980 and 1990 in what was then state-owned Sachsenglas Schwepnitz. The GDR regarded the product as a key potential export and gave it priority for development. However, foreign sales were not secured, as potential buyers regarded the idea of long-life glassware as detrimental to their ability to sell replacements. As state employees in a state owned industry, the inventors did not receive significant financial rewards or royalties, but were honoured for their achievements. Around 120 million glasses were sold by the end of production in 1990, mostly to food and drink establishments within the GDR. Designs included many glass sizes and ice cream cups.