Russian Offices in Mongolia, 1896 (8 May) red-band envelope to Peking bearing Russia 7kop., cancelled by "Urga/Pochtov. Kontora/1" c.d.s. (Tchilinghirian type 4), showing "Dun-Fu-Yu/Pekin" framed h.s. in red adjacent, slightly oily strike of the c.d.s., fine. Signed Peter Holcombe.
Estimate HK$ 2,000 - 2,500 Est. HK$2,000-2,500 (Image1)

Est. HK$2,000-2,500

Chinese Offices in Mongolia, 1910 (Sept.) neat red-band envelope to Kalgan bearing C.I.P. 2c. and 4c., cancelled by "Urga" native lunar c.d.s. (type 1), with "Si (West) Ku Lun Letter Box No. 3" unframed h.s. and "Kalgan" arrival c.d.s. on reverse, and 1911 (22 Dec.) red-band envelope to Kalgan (4.1.12) bearing on reverse C.I.P. 2c. and 4c. (4, with strip of three), cancelled by "Urga" bilingual segmented c.d.s. without serifs, showing "Tung (East) Ying Tsu Letter Box No. 2" and "Kalgan" bilingual arrival c.d.s. also tying two stamps, light overall toning affecting stamps.
Estimate HK$ 4,000 - 5,000 Est. HK$4,000-5,000 (Image1)

Est. HK$4,000-5,000

Chinese Offices in Mongolia, 1912(c.) red-band envelope to Kalgan bearing on reverse "Republic of China" Statistical Department of Customs overprint on 3c. pair, cancelled by "Urga" bilingual segemented c.d.s. without serifs and year date, 1913 red-band envelope (aged and taty around edges) to Kalgan bearing on reverse overprinted 1c. (4, one faulty due to placement near edge of the cover) and 2c., similarly cancelled (first year date modified to 2nd year), and 1917 red-band envelopes (2) each bearing Junk 6c., cancelled by "Urga" bilingual c.d.s. with serifs, the second envelope has faults, the other three are fine (4).
Estimate HK$ 4,000 - 5,000 Est. HK$4,000-5,000 (Image1)

Est. HK$4,000-5,000

Chinese Offices in Mongolia, 1918 (11 Nov.) red-band envelope to Kalgan (12.12) bearing Junk 1c. and 8c. with sheet margin at left, cancelled by "Urga" bilingual c.d.s. with serifs, and showing "Urga Postal Agency No. 1" circular h.s. adjacent, fine 9 cents rate.
Estimate HK$ 2,000 - 2,500 Est. HK$2,000-2,500 (Image1)

Est. HK$2,000-2,500