Cover with manuscript 'On Active Service' at top franked with single 1942 50d emerald green (SG 860) tied by Indian F.P.O. No. 107 cds dated 11 FEB 1944 located at AHWAZ. Addressed to AHWAZ with boxed 'Passed by Unit Censor 810' marking and additionally censored by the Russian authorities with red on white 'Farzi' censor strip tied by circular 'ANGLO-SOVIET-PERSIAN' censor mark in violet. Routed via Indian F.P.O. No.105 located at SULTANABAD with cds on reverse plus AHWAZ arrival cds. Cover is a little grubby but quite unusual.