Item no. P2528 (cover)

Type: cover

Country: Germany

Date of use: 11 March 1930

Business stationery (cover) used by the company BYK-GULDENWERKE Chemische Fabrik Aktiengesellschaft in Berlin (Germany). Apart other chemical products, the company manufactured also photographic papers, films, plates and chemicals.
The stamps used are “perfins” i. e. stamps bearing small round holes punched to form pattern of part of the company’s name i.e. “BYK”.