1899-1904, blue or red diagonal overprint ''Kitai'' on 1k-1r, complete set of eight, printed on horizontally laid paper, full OG, LH or previously hinged, VF, C.v. $168 (Image)

1904-08, blue or red diagonal overprint ''Kitai'' on 4k-5r, set of 14 (less 10k for completion), printed on vertically laid paper, in addition two forgeries of 10k with blue overprint, full OG, LH or previously hinged, mostly VF, C.v. $410 (Image)

1904-08, red diagonal overprint ''Kitai'' on 10k dark blue, printed on vertically laid paper, the ''key'' value with neat postal cancellation, mostly VF, expert's hs on reverse, C.v. $1,300 (Image)

1910-16, black, blue or red diagonal overprint ''Kitai'' on 1k-5r, set of 22, less both 14k, with extra 10k light blue and official reprint of 5r with black overprint, all are printed on paper with vertical varnish lines, full OG, LH or previously hinged, F/VF (Image)

1916, blue diagonal overprint ''Kitai'' on 1r brown, dark brown and orange, perforation 12½, practically complete Russian PO in Shanghai cancellation, VF and scarce, PF certificate, the stamp is listed in the M. Kramarenko Cat. #39 IIA, C.v. $650 (Image)

1917, black diagonal surcharges in ''cents'' and ''dollars'' on 1k-10r, set of 24 (less perforated stamp of 14c/14k) with two additional inverted surcharges and high values with surcharges at 38 and 43 degree angles, full OG, some NH, mainly LH/hinged, VF, C.v. $380 (Image)

1917, inverted black diagonal surcharge $5 on 5r dark blue, green and pale blue, background is strongly shifted to the bottom, minor perf irregularities at left, still fresh, full OG, previously hinged, VF, C.v. $500++ (Image)

COLLECTION OF RUSSIAN PO IN CHINA CANCELLATIONS: 1899- 1917, 110 used stamps in singles, pairs and blocks of four or nine, representing all overprinted and surcharged issues, less only 10k (No.11) for completion, Peking, Chefoo, Hankow, Harbin, Shanghai, Tientsin and etc. markings, in addition three postal history items, one incoming from Troitskosavsk and two from Shanghai PO (some tears), fresh quality unit overall, F/VF, C.v. is well over $1,200 (Image)

THE DR. RAYMOND CASEY TWO-PAGE STUDY OF THE KALGAN (CHANGKIAKOW) FOREIGN POST OFFICE: 1880-1916, ten items, representing various types of Kalgan postal markings, including seven singles (three on pieces) and three pieces, each is bearing three stamps, two items are marked as forgeries, nicely described, fresh and VF unit (Image)

Harbin issue. 1920, black or red surcharges on 1k-10k/7k, complete set of nine, in addition red italics surcharge 2c on 2k green, two stamps with inverted and one with double surcharge, as well as three blocks of four, full OG, NH or LH/hinged, F/VF, C.v. is over $1,150 (Image)

Harbin issue. 1920, black or red surcharges on 1k-10k/7k, complete set of nine, all are postally used, mainly fresh, F/VF and scarce, C.v. $960 (Image)

Harbin issue. 1920, blue surcharge 2c on 2k green, minor perf irregularities at the top, otherwise full OG, previously hinged, VF and scarce, expert's sign on reverse (Image)

Harbin issue. 1920, blue surcharge 2c on 2k green, neat Yaomyn postal cancellation, fresh, VF and rare (Image)