ROSTA windows were Agitprop posters created by artists and poets like Cheremnykh, Mayakovsky, Moor, Nuremberg, and Volpin for the Russian Telegraph Agency (ROSTA). They were usually displayed in windows and often painted with cardboard stencils rather than printed.
This is a selection of Vladimir Vladimirovich Mayakovsky’s posters designed for ROSTA from the book:
Duwakin, W. (1967). Rostafenster. Majakowski als Dichter und bildender Künstler. Dresden: VEB Verlag der Kunst