cover TONGSHAN: 1901 (12 July) ½a. stationery envelope to Germany with a good strike of "F.P.O.N/O.19"; from one of the German forces, the envelope is endorsed "Feldpost" and bears a fair strike of boxed "S.B./OSTAS. EXPED./EISENB. BAUKOMP" in blue and Tongku German Post c.d.s.; fine and scarce. Photo