Mieczysław Szczuka (1898-1927) and Teresa Żarnowerówna (1897-1949) were members of the “Blok” Group of Cubists, Constructivists, and Supremacists, active in Warsaw from 1924-1926. They were both visual artists, active in various avant-garde practices, including painting, graphic arts, and film. They are listed as coeditors of the issue of the magazine Blok from July 1924 in which “Printing: On Layout” appeared.