Bidspirit auction | Cª de Moçambique. 1937. Letter

Cª de Moçambique. 1937. Letter sent on 30.6.1937 from Beira, postage of 2$95 consisting of a block of 6 of the triangular Leão stamp of 45 centavos, 10 and 15 centavos, in an airmail envelope, with a red mark on the Airmail, indicating that the route could not be by air only, to Amsterdam.