PL.69 (NF CONSTANT VARIETY)(SG8 SPEC BS28h) ON COVER. Letter Grantham to Nottingham with 1d (SG8) pl.69 lettered NF, touched in two places, tied "321" numeral of Grantham. Shows good constant variety MARK NE SQUARE (spec BS28h). On reverse GRANTHAM date stamp NO 24 1846. Letter reference the "Spalding and Brandon Junction Railway". (Ref 112800).