cover 1879 (Nov.) native envelope (small portion of back missing at right) with enclosure, registered to Peshawar, bearing 4a. (2) tied by squared barred obliterator and showing "FIELD. P.O./NOV. ?" in circle and boxed "REGISTERED/FIELD. P.O." h.s. associated with FPO 12 (Kabul). Unusual rate. Photo