cover 1864-67 covers (7) to Mauritius (four unfranked and one from Pondicherry franked at 8a.) showing h.s. "TO PAY" markings for 1d., 6d. (3, one with "ship Letter" h.s.), 10d. and 1/8d., the other item with h.s. "3d", "ship Letter" and "Late Received"; all fine strikes in bluish ink