PL.5 (CL CONSTANT VARIETY MISPLACED LETTERS AND MARK IN POSTAGE) S.C.16 (SG21 SPEC C4g) ON COVER. Fine wrapper London to Perth with fine used die 2 1d pl.5 lettered CL S.C.16 tied neat London "23" Inland numeral and small part circular "ENR" hand stamp of the Northern Railway. Stamp clearly shows "LARGE BLOT IN TOP OF O OF POSTAGE EXTENDING INTO MARGIN ABOVE ; MISPLACED LETTERS". Back stamped 27 AU 1855. (Ref 105540).