cover -- 1901 (14 Jan.) opened out envelope, registered to Leipzig, bearing, on reverse, "C.I.P." 5c. rose pair and 5c. orange pair cancelled by Amoy bilingual c.d.s., the face with Hong Kong 20c. on 30c. cancelled by the "I.P.O." tieprint and Hong Kong c.d.s., a fine strike of the boxed "AMOY" registered h.s. and large "R" in red. Fine and attractive. Photo