144521 1840 MAIL LONDON TO MARLBOROUGH, WILTS 1d GREY-BLACK PL.7 (SG3) x 2, REDIRECTED BACK TO LONDON 1d BLACK PL.5 (SG2) x 2.

1840 MAIL LONDON TO MARLBOROUGH, WILTS 1d GREY-BLACK PL.7 (SG3) x 2, REDIRECTED BACK TO LONDON 1d BLACK PL.5 (SG2) x 2. Fine envelope London to the Marchionefs of Ailesbury, Tottenham Park, Marlborough' with 1d grey-blacks pl.7 x 2 lettered EI four close to fine margins and DL touched at right otherwise good margins tied fine strike red Maltese cross. Redirected to '41 Grosvenor Square, London' with 1d blacks PL.5 (SG2) lettered KI touched at upper left and KH touched several places tied fine strikes red Maltese cross of Marlborough. On reverse 'MARLBOROUGH' date stamp SP 25 1840 in red. A rare redirected double rate usage with 1d blacks from two different plates. (Ref 144521).