Glass flask, Erlenmeyer (conical) flask 1000mL, made by VEB Werk für Technisches Glas, Ilmenau, German Democratic Republic, 1969-1990. The object has the inscriptions "RASOTHERM", "1000ml" and "MADE IN GDR" inside a white lined square; a white square writing box; the company logo contained within a box and graduation lines at 100mL intervals from 400mL to 1000mL.
