1856 DIE 2 1D PL.27 BLUED PAPER INVERTED WATERMARK (SG29Wi) USED ON COVER. Envelope London to York with good used Die 2 1d pl.27 red-brown on blued paper INVERTED WATERMARK (SG29Wi) lettered CG tied London '13' Inland Office numeral. On reverse London date stamp DE 10 1856 and YORK DE 11 1856. VERY SCARCE USAGE ON COVER. (Ref 67857).