Portuguese Colonies. (Portuguese India - Zanzibar). 1936. Envelope addressed to Zanzibar bearing Portuguese India SG 510, 1 1/2d carmine tied by Nova Goa double ring '2nd Feb'. on reverse, underpaid with bold 'T' hand-stamp and '20c' in m/s and bearing Zanzibar postage dues SG D25, 5c violet and SG D26, 10c scarlet tied by 'Reg/ Zanzibar' receiver '19th Feb' on reverse.
Scarce item of underpaid postage due mail from Portuguese India with Zanzibar tax stamps applied on arrival for under payment.