cover -- 1901 (18 Oct.) "Maus" envelope, registered to Germany, bearing 1897 small figures 10c. on 6ca. block of four and, on reverse, 5c. on 5ca. Small Dragon block of four and large figures 5c. on 5ca. block of four, each cancelled by Amoy bilingual c.d.s., front with additional Hong Kong 30c. grey-green with 50c. on 48c. cancelled by the "I.P.O." tieprint and Hong Kong registered c.d.s., also the boxed "AMOY" registered h.s. and large "R" in black; fine. Photo