1903 (17 July) registered cover (opened for display) from Harbin to Gnesen, Germany (today Gniezno, Poland), franked on back with Russian 2k, and two each 3k and 7k, paying 22k, tied by "Harbin 5 Pocht. Tel. Kont", Roman Numerals "VII" inverted, fine, with Moscow transit and arrival pmks (Image)

Est.US$150

1907 (16 Nov) registered cover headed "American Consulate Harbin", sent from Harbin to Oswego City, franked with unoverprinted Russian 2k and 4x7k, paying 30k, tied by Harbin departure cds, with Cyrillic Registry Label "Harbin centralnoj" (Harbin Central), intact U.S. "Consulate General Mukden China" wax seal, transit and arrival pmks on back, fine (Image)

Est.US$150

1919 (9 May) cover franked with unoverprinted Russian 15k, two imperf. pairs of 5k, used in combination with 35k on 2k (Siberia), paying 70k from Harbin to Los Angeles, with I.J.P.O. Changchun (Manchuria) and Kobe, Japan transit markings, both on front, fine cover, ex-Robbins (Image)

Est.US$150

1919 (2 Dec) cover franked with unoverprinted Russian 35k and imperf. 70k, used in combination with 3x35k on 2k (Siberia), paying 2r from Harbin to San Francisco, with "Harbin-Pristan" (Harbin Pier Postal Branch) departure pmks, with I.J.P.O. Changchun (Manchuria) transit pmk on back, cover roughly opened at top, otherwise fine (Image)

Est.US$250