cover 1866 (22 February) entire letter from Hope Field, endorsed "Registered-Registered", addressed to Cape Town, bearing 6d. bright mauve, margins all round, and rectangular 4d. blue, wing margin at left, tied by triangular cancellations, showing "MALMESBURY/FE 23/1866" black oval d.s. and "CAPE TOWN/E/FE 23/CAPE COLONY" c.d.s. in black; minor creasing; very scarce.