1863 (11 July) cover to France, with 20c Empire, tied by CEM.A in dots, supported by "Corps Exp. Mexique Bau.A" cds alongside, Paris a Strasbourg entry pmk on back; also another cover used in 1864 to Lyon, franked with 10c & 40c (faulty), with Corps. Exp. Mexique Bau.A departure cds, fine (Image)