Auction 309-320 - Europe & Overseas Egypt, including the Constantin Kelemenis - Day 4

1873: 2 a. orange, used with 4 a. deep-green, on cover, from Bombay to Cairo, dated 25 July 1873, tied by "1" duplex in black, with British PO in Suez datestamp alongside dated 14 August 1873 and Egyptian Suez datestamp on the same day, arrival to reverse, cover underpaid and taxed by "80" handstamp to front applied on arrival in Cairo, fine and rare.