The artist's name on the poster is not indicated. By assigning Artist Unknown to a poster it also could mean the artist used a chop mark whereby no signature is seen thus rendering the artist's identity anonymous.
Pravda Vostoka means "Truth of the East"
Ogiz (Ob"edinenie gosudarstvennykh knizhno-zhurnal'nykh izdatel'stv) is the Association of the State Book and Magazine Publishers. It was established in 1930 by the Russian (RSFSR) Sovnarkom in order to centralize all publishing activities in the Soviet Union. As a result of centralization, posters, art magazines and artistic books were placed under Izogiz (Izobrazitel'noe iskusstvo), the fine arts section of Ogiz. Aside from centralization, the creation of Ogiz helped eliminate duplication of printed products. In 1931 the Central Committee of the USSR ordered certain publications separated from Ogiz-- chiefly technical manuals and material having a propaganda nature. In 1949, Ogiz was transferred to Glavpoligrafizdat (Main Administration for Matters of Polygraphic Industry, Publishing and Book Selling). In 1954, Glavpoligrafizdat was re-named Glavizdat and thereafter, all publishing, printing and bookselling was separated into three distinct entities.