FOR A PARTICIPANT OF 17TH CONGRESS OF COMMUNIST PARTY (Congress of Executed, most members were arrested and shot in 1937-38): 1934, 17-page booklet containing 119 stamps tied by Special Congress date stamp of ''25.1.34'', black cardboard cover, fresh quality, VF and very rare, only a few known (Image)

1925, Four-Page Presentation Booklet of the Ministry of the Communications, containing Popov, Academy of Sciences, Revolution of 1905 and Decembrist Revolt (both perforated) issues, the total is 10 stamps, dark blue inscription outside and inside, fresh and VF (Image)