Lot 70430 – 1870 (Jun 7) envelope from Seychelles to Utah, USA, with Mauritius 1860-63 9d block of four

1870 (Jun 7) envelope from Seychelles to Utah, USA, with Mauritius 1860-63 9d block of four tied by very good strikes of the « B64 » barred ovals, reverse with two Seychelles despatch cds (one with inverted code B), with London transit along with New York entry and « 4 » charge hs, envelope with some minor cosmetic reparations with the block having been folded over the edge for sending and the envelope since refolded to improve its appearance. A rare double rate usage, and a showpiece item of Mauritius used in the Seychelles.