cover -- 1899 (8 Nov.) "Maus" envelope, registered to Germany, bearing "C.I.P." 10c. and 30c. tied by Wuchow bilingual c.d.s. and Hong Kong 30c. grey-green with 10c. purple on red cancelled by fine strikes of the "I.P.O." tieprint and Hong Kong c.d.s.; fresh and fine. Photo