Glass — 1550-1650

Clear, colourless glass with many air bubbles. The body and foot made of one piece, blown in an optic mould with 18 ribs. Applied decoration of blue and opaque-white glass threads. A glass thread was wound spirally around the ribbed glass bubble before it was blown out further, causing the thread to break up into many white spots. The foot was made by pushing the lower part of the glass bubble in on itself, so the entire foot is double, with air bubbles trapped in between.