Bidspirit auction | Portuguese India 1957 airmail cover

Portuguese India 1957 airmail cover from Goa to Lisbon franked with a pair of the 3 1/2 tangas MH issues (CE 382) and a single 4 tangas value of the 1956 Fundacao issues (CE 449). Stamps tied by two clear hexagonal “Goa” airmail postmarks. The envelope was from the National Library at Vasco da Gama. S.R. (Servico de Republica) “No. 3/C/57”.