1d ARCHER PLATE 97 (SF) (SG 16b) USED ON 1854 COVER LONDON TO REIGATE. 1854 entire London to Reigate with fine Archer pl. 97 lettered SF tied London numeral clear of the alp I check letters. Back stamped London 21/JA/1854 - A WEEK BEFORE THE OFFICIALLY PERFORATED STAMPS WERE ISSUED - MATCHED WITH imperforate example (SG8) with very close but just clear four margins. Cat. £2400.00. (Ref 66432).