cover -- 1899 (4 Oct.) Customs House "Maus" envelope, registered to Germany, bearing "C.I.P." $1 (top right corner) tied by a fine strike of the Wuchow bilingual c.d.s. with Hong Kong $1 on 96c. grey-black (crease) cancelled by a good strike of the "I.P.O." tieprint and Hong Kong c.d.s., large "R" h.s. at left, fine. Photo