cover 10c Green type II (14), horizontal strip of three, pos. 55-57R1, ample to huge margins, used with 3c Dull Red (11), large margins to slightly in, cancelled by grid cancel on 1857 missionary cover to Shanghai, China, indistinct "Greenfield, Ms. Jan 16" c.d.s., ms. "per Steamer, via New York", magenta ms. "12" credit (to Britain), red "New-York Am. Pkt. Jan 17" exchange h.s. on reverse, red London transit on front, Hong Kong transit on reverse, carried by the Collins Line's packet Ericsson, this cover paid the 33c rate by British Mail to China via Southampton, very fine and choice, with 1993 P.F. certificate, a magnificent cover to a very rare destination photo