Bidspirit auction | Portugal airmail registered letter dispatched

Portugal airmail registered letter dispatched from the Melgaço post office on 19/08/1944 with transit through Lisbon and destination Argentina, postage of 22$75 corresponding to 1$75 of international postage up to 20 g (table of 1.8.1934), 2$00 registration fee and 19$00 air surcharge (table of 1.1.1944). It was opened by the censorship.