139593 1845 1D PL.56 (SG8)(BC CONSTANT VARIETY 'MARK OUTSIDE NW SQUARE') GOOD TO FINE USED.

1845 1D PL.56 (SG8)(BC CONSTANT VARIETY 'MARK OUTSIDE NW SQUARE') GOOD TO FINE USED. Good to fine used 1845 1d pl.56 (SG8) lettered BC, four close to fine margins with Irish numeral cancellation. Stamp shows constant variety 'MARK OUTSIDE NW SQUARE' which is listed in Brown Fisher and present on imprimatur sheet although unlisted by SG. (Ref 139593).