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.
Mosoblpoligraf was a regional, state-owned printing trust created in the mid-1920s during the period when the Soviet Union was consolidating its best and most productive printers. The 5th Lithography Workshop, 12th Lithography Workshop, 16th Lithography Workshop and the 26th Lithography Workshop were all Moscow-based printers under the Mosoblpoligraf banner.
Izogiz was the fine arts section of Ogiz publishing. In 1963, Izogiz was re-named Sovetskii khudozhnik, "Soviet Artist".