Planches de Salut , by louis marcoussis , 1931 , illustration , Cubism style , Line, monochrome
A black and white drawing of an open door leading to a stairway.
A black and white drawing of an open door leading to a stairway. The door is white and the other door is open. There is a person standing in front of the stairs. The stairs have white railings on the top of it. 