cover 1884 envelope to Pittsburgh, U.S.A. (10.12.84 arrival) via Yokohama (18.11.84) and San Francisco (4.12.84) bearing Large Dragon 1883 3 ca. (2, one with perf. defects due to application over top of cover), cancelled by Shanghai seal with companion "CUSTOMS/SHANGHAI" c.d.s. (4.11.84) on reverse, in combination with Japan 5 s. (faded) cancelled by cork type and showing "I.J.P.A./SHANGHAI" c.d.s. (6.11.84) adjacent. Rare. Photo