Auction #4 World Coins & Medals + Specialized Holyland Postal History

"Force in Egypt" British WWI military mail in Egypt: front 26 VII 1915 OAS civilian stationary cv ex Military Hospital at Citadel CAIRO to EDINBURGH, mix franked 1d + 4m (slight overcharge for 5m letter rate; unnecessary as FiE eligible for free postage w/officer's endorsement as of 24 May) & tied by 2 strikes of CAIRO-K pmk on latest known date of use pre-EEF period & "Colonel | o/c Mil. Hosp. | Citadel Cairo" cachet w/facsimile officer's signature (FB-NHC43).
Feldpost - Britisches Weltreich Erster Weltkrieg
דואר צבאי - אימפריה בריטית במלחמת העולם ה-1