Bidspirit auction | Companhia de Moçambique. 1935. Airmail

Companhia de Moçambique. 1935. Airmail stamps. Letter from Beira 16.8.1937, postage of 7$40 stamps of 2$00.5$00 and 40 centavos, to Poland, with the handwritten indication ”via Czechoslovakia”