PL.23 (SPEC. C7 - ALPHABET 3 WATERMARK SMALL CROWN) (KK) ON COVER. 1856 envelope (some soiling) Tunbridge Wells to Christchurch with a die 2 1d pl.23 "C7" lettered KK - SHOWING GOTHIC K's - tied TUNBRIDGE-WELLS sideways duplex MR 27 1856. Filing fold affects stamp, which has rounded corner. On reverse CALVERLY udc in blue. Spec. C7 on cover cats. £2500. (Ref 89546).