cover 1897 (27 Oct.) XU5 (opened out for display) to U.S.A. (10.12 arrival) showing red unframed "CHUNGKING CUSTOMS/MAIL MATTER" cachet overstruck by similar "dollar chop" in black, a Japanese Koban 10s. has been affixed over and indistinctly cancelled by c.d.s. (10.11); reverse showing Shanghai "dollar chop" in blue (7.11) and Yokohama (14.11) transit c.d.s.; a rare an unusual usage. Photo