Historama Autumn Mail Auction #5

MEF British WWI military mail in Egypt: 28 DE 1915 stampless (OAS) ppc of Cairo Citadel ex FPO 1Y (1 South Midland Mtd Bgd at MENA CAMP, Cairo) to LONDON, tied by DC DS as Proud-D2 but here with date before month, as such unlisted in Proud & FB; endorsed by officer on back.