(Chinese Expeditionary Forces) 1901 (20 AP) cover to Tongku bearing combination franking of India C.E.F. 3p. tied F.P.O. No.20 date stamps, these cancels also tying China 5c. on ½c. B.R.A. (British Railway Administration) which is cancelled by violet undated Railway Post Office Tientsin , reverse with F.P.O. No.4 cds. Very fine condition.