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.
Plakat (All-Union Poster) was created in 1974 in Moscow through the work of the Union of Artists and the Central Committee of the Communist Party. The chief of its poster department was Dmitry Akimovich Isaev. Plakat publishers existed until 1991 whereupon it was renamed Panorama publishers.