F Reference: 1878 cover (opened out for display) to U.S.A. (25.6 arrival) via Yokohama (31.5) showing on reverse "I.G. OF CUSTOMS/PEKING" origin c.d.s. (28.4) in blue and Customs c.d.s. for Tientsin (1.5) and Shanghai (5.5) bearing on front Japan 5s. brown cancelled by cork type with "I.J. POSTAL AGENCY SHANGHAI" c.d.s. (28.5) adjacent; on reverse a Large Dragon opaque paper 3ca. centrally cancelled by seal in blue which did not originate on ths cover has been substituted and tied by bogus target cancellation in red