Advertising Postcards. 1931, Airships ''Klim Voroshilov'' and ''Pravda'', 5k brown and 10k red respectively, first one – postally used, the other one – unused, both mostly VF (Image)

Advertising Postcards. REVOLUTIONARIES' AID ASSOCIATION (M.O.P.R.): 1930-32, group of six postcards, one of 5k orange brown and five – 10k red, promoting aid to foreign workers and ''captives of capital'', contains card ''Against Lynching'', one card with minor repair, otherwise fresh, unused and VF (Image)

Advertising Postcards. BALANCE OF ADVERTISING POSTCARDS: 1930-32, 11 items, including five of 5k brown and six of 10k red, including Airship ''OSOAVIAKHIM'' (2), advertising of Air Mail (2), Banking Services (4), Sugar Beet Harvest (2), Subscription to Periodicals (1), generally fresh, unused and VF (Image)

Advertising Postcards. CENTRAL ASIA BUREAU OF THE MINISTRY OF COMMUNICATIONS: 1931, brown red overprint ''Strengthening the combat readiness of the Red Army'' on stationery postcard 5k brown, fresh, unused and VF (Image)