Square-format screen-drawing characterised by a black frame painted around the edges of a sheet of paper, defining a ‘field for projection’ painted a composite white and traversed by spray-painted interventions. The screen’s white enamel appears here and there on the black frame, restoring fluidity to contours that echo the progress of the inner grey line. For greater insight into the concept of ‘schermo’ in Mauri’s work, see the introductory essays.