cover 1857 (21 Oct.) envelope to Messrs. Jamshetjee Dorabjee (Naval Dubash), Bombay, bearing imperf. 1a. red (good to large margins) tied by "131" in diamond of bars with a fair to good strike of the "FIELD FORCE/21 OL 57/PD" c.d.s. in red alongside. A rare and highly presentable exhibition item. Photo