"Force in Egypt" British WWI military mail in Egypt: 11 MR 1915 OHMS "HQ Aust. & NZ Army Corp" stationary cv ex Shepheard's Hotel CAIRO to business BOMBAY, franked 5m per letter rate as stampless mail not yet available to forces (until 24 May) & tied by 2 strikes of hotel/Cairo pmk on earliest known date of use; b/s 26 MAR 1915 BOMBAY GPO arr & Indian Army Bombay censor cachet on front; slit open at top, vertical fold. Austr. forces were under FiE command & paid Egyptian civil. postal rates; as of 21 Nov 1914 mail to India from Egypt could be sent free via Indian Army Postal Service (for Forces "E" and "F").