The First All-Russian Agricultural and Handicraft Exhibition was held in Moscow in 1923. It was opened on 19 August. This very day, a special commemorative series of postage stamps dedicated to the exhibition opening was released. These were the first stamps of the Soviet Union.[1]
The stamps have the inscription in Russian: "CCCP" ("USSR") or "Почта CCCP" (Post of the USSR), the value, and the words in Russian: "Всероссийская сельско-хоз. и кустарно-пром. выставка" (All-Russian Agricultural and Handicraft Exhibition). They were produced by lithographic printing in two versions, imperforate and perforated.[2]
Grant, J. (July 1995). "The socialist construction of philately in the early Soviet era". Comparative Studies in Society and History. 37 (3): 476–493. doi:10.1017/S0010417500019770. ISSN0010-4175. JSTOR179216.