cover 1926 (31 Jan.) O.H.M.S. envelope to Crater, readdressed to "Point" countersigned "B Singh Aden Troop" and bearing, on reserve, Official 1a. tied by "KHORMAKSAR" double-ring d.s. (D5.) with similar types for "MAALLA", "ADEN CAMP" and "ADEN" (D40.) adjacent. Rare and fascinating Official mail item. Photo