108203 - 1871 OXFORD ERROR OF DUPLEX "613" INSTEAD OF "603" ON COVER.

1871 OXFORD ERROR OF DUPLEX "613" INSTEAD OF "603" ON COVER. 1871 envelope Oxford to "The Hon. Judge Flanagan, 20 Fitzwilliam Place, Dublin" with fine 1d pl.145 (SG43) lettered QI tied fine strike of the OXFORD/613 duplex DE 8 71 showing the ERROR OF NUMERAL. On reverse "H and K. PACT" date stamp DE 9 1871. Also 1871 cover Oxford to Dublin, same correspondence, also with "H and K PACT" date stamp with OXFORD/603 correct duplex. Fine pair of covers. (Ref 108203).