1924 (incoming mail) red-band Chinese cover with Regular Issue two of each 4k and 6k, paying 20k to Manchuria, Chinese Mongolian Control, Peking transit and Kalgan arrival pmks, fine and rare Soviet Usage to Mongolia (Image)

Est.US$500

1926 5c plum, violet handstamp, variety imperf. vertically, used, minor faults, fine appearance (Cat No. 18var) (Image)

Est.US$250

1926 official Bank cover franked with imperforate 20m single, tied by Ulan-Bator departure cds, addressed locally, some adhesive toning and filing folds away from the stamp, fine and unusual usage with imperf. single on cover (Cat No. 44Ca) (Image)

Est.US$250

1931 return card franked with 1m orange & black, tied by Ulan Bator pmk and addressed locally, fine and scarce usage (Image)

Est.US$150

1931 20c bister brown, overprint inverted, canceled Ulan Bator, rough perforations, fine and obviously rare variety (Hellrigl states "one unused pair and three used singles, as well as two covers and one card recorded") (Cat No. 52var) (Image)

Est.US$250

1931 5m on 5c brown violet, vertical pair used 10.6.1932 on picture postcard addressed to Manchuria, fine and extremely rare usage on card (Cat No. 59) (Image)

Est.US$500

1931 20m on 20c bistre brown, "Postage" reading up, surcharge completely shifted, horizontal sheet margin pair, affixed by adhesive, which is showing through and badly stained, canceled by Ulan Bator pmk on cover addressed to Harbin, with 1c and 2c China/Manchuria blocks of four canceled by Harbin 5 Dec 31 pmks, with another on back, rare (Cat No. 61var) (Image)

Est.US$500

1932 1m variety imperf. at right, n.h., also 2m variety imperf. at top (trimmed), canceled Altanbulak, fine (Cat No. 62,63var) (Image)

Est.US$250

1932 Landscapes, 1 Tugra carmine, perforated trial color proof affixed on presentation card and overprinted "Proekt 20 Mar 1932" in red Cyrillic letters, fine and rare (Cat No. 71P) (Image)

Est.US$500

1934 (30 Oct) cover franked on back with block of 6x5m, sent from Ulan Bator, via Vladivostok to Shanghai, with departure pmk on front and directional handstamp, franking apparently not recognized, with Chinese Postage Dues, strip of 5x10c orange added and canceled by Kalgan 19.12.34 pmks (Image)

Est.US$250

1914 red band cover from Urga to Kalgan, franked with two pairs of 3c green C.I.P. with red Statistical Department overprints, tied by Urga departure pmks, with various red chops and Kalgan arrival (Image)

Est.US$250

1904 red-band cover from Urga to Peking, franked with pair of Russia 7k Arms, tied by Urga cds, various red chops and Dun-Fuyu Peking merchant's handstamp (Image)

Est.US$250

1904 red-band cover from Urga to Peking, franked with single Russia 14k Arms, tied by Urga cds, various red chops, roughly opened at left, still fine (Image)

Est.US$250