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.
This printing house was at 11 Zvenigorodskaia Street and was named after Ivan Fedorov (c.1525-1583), historically referred to as the "first" Russian printer. Prior to nationalization, the Fedorov Workshop belonged to the St. Petersburg firm of Roman Golike and Artur Vilborg. It became the 15th State Typography Workshop when the Soviet government took over production just after the Russian Revolution and it subsequently became the 3rd Typography Workshop in later years.
For backstory, please see the entries for State Publishing House, Moscow and State Publishing House.