Lot 70004 – GB USED IN MAURITIUS: 1862 (Jun 9) Envelope to Dublin with GB 1855-57 6d pale lilac, wmk Emblems tied by “B53” numeral

1862 (Jun 9) Envelope to Dublin with GB 1855-57 6d pale lilac, wmk Emblems tied by “B53” numeral and Dublin cds, red “1 1/2d” hs, reverse with Mauritius despatch, H&K Pact and Belturbet arrival, minor envelope faults, the only known usage of GB in Mauritius, a major used abroad postal history rarityExpertise: Cert. BPA (2003).Provenance: Chand 2000 (Exhibited at British Library), Pearmund.