1930 surcharges, two sets, used, various pmks, also four additional 25m on 40m (two unused, l.h.) fine-v.f., cat. $800 (Cat No. 45-47) (Image)

Cat. $800, Est.US$300

1930 25m on 40m lemon & black, canceled on piece by framed red "MURIN" in Cyrillic caps, fine and rare cancel of "Meren" in northern Mongolia (Cat No. 47) (Image)

Est.US$200

1975 Communication, 80m Airplane, double overprint, one inverted, single and sheet corner margin block of four, n.h., v.f., only one sheet of 50 stated to have been discovered (Cat No. 850Fvar) (Image)

Est.US$500

1926 (17 Sep) cover to Moscow, with bilingual "The Commercial & Industrial Bank of Mongolia" corner cachet on front, franked on back with "Postage" handstamped 5c and 20c, tied by Ulan Bator departure cds, with Moscow (3.10.26) arrival alongside, fine and rare usage of handstamped adhesives on commercial cover (Image)

Est.US$250

1926 red-band cover to Manchuria, franked with "Postage" handstamped 5c and 20c, tied by Ulan Bator departure cds, Cyrillic directionals in pen, with Chinese 1c and 3x3c Junk added on back and tied by Kalgan cds, "Manchouli" arrival pmk alongside, fine (Image)

Est.US$500

1926 (11 Nov) registered cover from Ulan Bator to Linkoping, Sweden, franked with single 50m on front, with Registry handstamp alongside, endorsed "Via Siberia", fine (Image)

Est.US$200

1926 red-band cover to Manchuria, franked with "Postage" handstamped 5c and 20c, tied by Altanbulak departure datestamps, sent via Peking, with 20 Oct.26 transit cds, red chops and arrival pmk alongside, fine cover, without the usual Chinese postage added on arrival (China did not recognize Mongolian adhesives) (Image)

Est.US$500

1926 red-band cover from Tsetserleg to Kalgan, via Manchouli, franked on back with 5m and 20m, tied by departure datestamps, single Chinese 4c Junk on front, tied by arrival pmk, fine (Image)

Est.US$250

1927 (5 Dec) red-band cover to Harbin, China, franked with 5m and 20m, tied by Ulan Bator departure cds, showing red Cyrillic directional handstamp "Via Troitskosavsk-Harbin to China", Chinese 1c and pair of 4c Junk added on arrival and tied by cds, fine and scarce usage to China, directed via Troitskosavsk (Kyachta), signed Peter Holcombe (Image)

Est.US$500

1927 (26 Aug) registered cover (slightly reduced at left) franked with 10c, 20c and a block of 4x5c, paying 50c from Ulan Bator to Leningrad, with arrival (12.9.27) pmks on back, fine commercial cover to the Soviet Union (Image)

Est.US$300

1929 (23 Feb) registered, commercial cover from Ulan Bator to Leipzig, Germany, franked on back with single 50m buff & black (41), tied by departure cds, with arrival (27.3.29) alongside, double Registry handstamps on front, also additional "Zakaznoe" at top, fine (Image)

Est.US$200

1929 (26 Jan) registered cover from Ulan Bator to Nograd, Hungary, franked with 10c and pair of 20c, tied by departure cds, with arrival (21 Feb, 1929) datestamps on back, cover roughly opened at top, otherwise fine, uncommon destination (Image)

Est.US$250

1930 (25 Feb) red band cover from Ulan Bator to Kalgan, franked on back with 5m and 20m, tied by departure cds, with "Manchouli" transit and faint "Verkneudinsk" below, "V. Kolgan" (Russian Cyrillic) handstamp in red, Chinese 4c Junk added on arrival on front, fine and scarce usage via Verkhneudinsk (today Ulan-Ude, capital city of Buryat-Mongol Autonomous Republic, part of the Russian Federation) (Image)

Est.US$750

1931 cover from Ulan Bator to Harbin, China, franked with pair of 10c green (51), charged 32c postage due with Chinese Postage Dues 1c, 2c, 4c (3), 1/2c (4) and strip of 4x4c red surcharge, all tied by Harbin (30 Nov) arrival pmks, some adhesive toning, otherwise fine and attractive combination franking, all stamps on one side (Image)

Est.US$400

1931 (27 Aug) red-band cover to Harbin, China, franked with 5m and 20m, each with violet "Postage" handstamp (50,52), tied by Ulan Bator departure cds, clear red Cyrillic directional handstamp "Via Troitskosavsk-Harbin to China", Chinese 20c and 30c Postage Dues added on arrival in Harbin, fine usage to China, directed via Troitskosavsk (Kyachta) (Image)

Est.US$500

1932 (19 Oct) native cover from Ulan Bator to Kalgan, franked with single 25 Mung (68), sent via Manchuria, with Cyrillic censor markings, also Chinese transit and censor cachet, Kalgan arrival, additional departure pmk (date inverted) on front, fine (Image)

Est.US$200