Bidspirit auction | Portuguese India 1936 registered airmail

Portuguese India 1936 registered airmail cover from Zanzibar to Candolim Goa franked with 4 different large format issues of the Sultan of Zanzibar: 10 cents, 20 cents, 30 cents and 50 cents. Diamond shaped “Mapuca” registration transit postmark and a clear “Candolim” CDS. A scarce village postmark. Attractive.