cover 10c Yellow (116), fine single, cancelled by small circle of wedges cancel, used on small cover to N.Y., mostly clear 'P.O.D. U.S. Con. Genl. Shanghai May 12' c.d.s. of origin, San Francisco transit on front, ms. 'via San Francisco per Am. Mail', some additional extraneous cancelling ink at bottom right of cover, very fine, scarce, 10c 1869 Pictorial used from U.S. Post Offices in China paying the 10c American Packet rate via San Francisco, Scott retail $375.00++ photo est.