cover 1919 (19 Aug.) "CHINA" 10c. registered XU5 (size H2) to U.S.A., bearing additional "CHINA" 4c. and 12c., each cancelled by "HOIHOW" c.d.s. (Type Hii) and showing clear "R/HOIHOW:B.P.O." registration h.s (crossed by crease). A scarce and attractive franking. Photo