1917 "On Active Service" cover "Via SS Empress of Russia" addressed to Mrs. Morley, Douglas, Isle of Man, showing an excellent strike of red "Official Paid Hong Kong 18 De 17" (Webb Type C), with censor cachet of 25th Middlesex Regt Officer Commanding, Col.John Ward, M.P., fine (Image)

Est.US$500

1920 (29 Apr) cover endorsed "On Active Service" from British Forces in Siberia to Taikoo, Hong Kong, showing "Field Post Office 201" double-ring cds, with red "Official Paid Hong Kong" (Webb Type C) at bottom, plus "Hong Kong Wan Tsai" (Webb Type A) 10 May 20 arrival pmk on back, minute cover flaws and pinhole, fine and uncommon destination from British Army in Siberia to Hong Kong, showing extremely rare markings, 2017 BPA certificate (Image)

Est.US$5,000