1915-18 Postmarks and postal history, the collection in an album with stampless forces covers and cards bearing A.P.O datestamps including scarce violet boxed "33" datestamp on card strangely bearing G.S.W.A 5pf, etc. (7), stampless P.O.W cover from Aus, and South Africa used in S.W.A comprising covers (23), pieces (35) and stamps (20) with 1916 4d registration envelope from Keetmanshoop endorsed "On Active Service" so accepted post free, 1916 registered cover from Windhoek to Switzerland franked 3d strip of three, etc. (30 covers + 55 stamps/pieces). Photo on Page 226. (Image1)