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.
The 1st Exemplary Gosizdat Typolithography Workshop was located in Moscow at 28 Valovaia Street. Historically, the workshop began as the Sharapov-Sytin Partnerhip in the era prior to the Russian Revolution. Ivan Dmitrievich Sytin (1851-1934) was the son of a peasant. He opened a small print shop in Moscow using a single press and by the start of the 20th century his printing business (at Valovaia and Piatnitskaia streets) was the largest private printing company in tsarist Russia.
For backstory, please see the entries for State Publishing House, Moscow and State Publishing House.