2a purple, 2a 6p ultramarine and 3a orange GV issue with 'I.E.F.' overprint all used with good central large part strikes of Indian 'F.P.O. No. 22' cds dated 23 MAY 1917 assumed to be from the Garrison stationed at the re-occupied town of TAVETA in TANGANYIKA (now in Kenya) however the date is four months later that the recorded period of use. Rare group. (SG E5/E7)