Item no. P3547b (cover)

Type: cover

Country: Germany

Date of use: August 1923

Business stationery (cover, back of) used by the company CARL ZEISS in Jena (Germany), a factory manufacturing various optical instruments and photographic lenses. The postage stamps used are “perfins” i. e. stamps bearing small round holes punched to form pattern of an acronym "CZ" – the company’s initials.