The Fourth issue. 1917-20, almost 200 mint and used stamps, two values with double and four with inverted surcharges, nice group of various cancellations, such as Station Bukhedu, Hailar, Yaomyn and etc., all presented on well-described pages, full OG or used, F/VF, C.v. is about $1,600 (Image)

The Fourth issue. 1917-20, inverted black diagonal surcharge $5 on 5r blue, green and pale blue, nice and fresh, full OG, LH, VF, expertized by Dr. Jemtschoujin, C.v. $500 (Image)

The Fourth issue. 1919, registered stampless cover from Manchuria to Slyudyanka (Irkutsk Gov.), postmaster's hs ''Payment 1r 5k collected. Postal Clerk'' and signature, tied by Manchuria ''18.1.19'', letter ''a'' ds, postmarked on arrival, top left corner is broken and archival fold, still F/VF (Image)