139987 1851 MAIL LONDON TO ROTHERHAM WITH 1D (SG8) X 2, TWO DIFFERENT PLATES, TWO DIFFERENT SHADES.

1851 MAIL LONDON TO ROTHERHAM WITH 1D (SG8) X 2, TWO DIFFERENT PLATES, TWO DIFFERENT SHADES. Envelope from London to 'The Earl of Scarborough, Sandbeck Park, Tickhill, Rotherham' with fine 1d pl.107 red-brown on VERY BLUED PAPER (SG8a) lettered CI, second 1d red-brown shade (SG8) pl.96, lettered FH, both four margins and tied London '14' Inland Office numeral. Unusual usage clearly showing two different 1d shades. (Ref 139987).