cover 1898 (16 June) envelope registered to a passenger on board a Japanese steamer at Hong Kong, bearing diagonal overprint 20pf., 25pf. and 50pf. each tied by "TIENTSIN/KAISERL. DEUTSCHE/POSTAGENTUR" c.d.s. and showing, on reverse, Hong Kong (29.6) and Nagasaki c.d.s. (15.10). M. 4I-6I