cover 1882 (21 April) envelope from Peking to U.S.A. "via Japan", reverse with a fine example of wide margin 3ca. with top margin [23] tied by a fine seal in blue, front with Japan Koban 5s. with "I.J.POSTAL AGENCY/SHANGHAI" c.d.s. and Yokohama c.d.s. alongside, other transit c.d.s. on reverse. Sadly the envelope has been roughly opened at the side and part of the Japanese stamp has been removed. Photo