cover 1891-94 envelopes (3) from U.S. Consulate in Ningpo (all showing corner card imprints) to U.S.A. bearing 1887 1c. + 2c. pair + 1890 5c., 1890 5c. single franking, and 1893 Columbus 5c., cancelled U.S. Postal Agency Shanghai barred obliterator (with oval d.s.) or duplex. Faults