1855 DIE 2 1d PL.7 (SG21)(RK) CONSTANT VARIETY, FINE USED. Fine used 1855 Die 2 1d Pl.7 S.C.16 (SG21) lettered RK cancelled '553' numeral of Lane End, Staffs. Stamp shows constant variety 'DIFFERENT PUNCH USED FOR 'R', 'R' WITH LARGER LOOP'. (Ref 144930).