A glass case at the center of the gallery contained four rolls of semitransparent paper. But these were not continuous sheets, nor did they have straight edges. Rather, they had been pieced together from clippings with irregular edges, strips of tracing paper marked with graphite lines, the borders broken by extremely precise curved or rectilinear cuts. It might have seemed like a huge expenditure of energy, a great effort transformed into a simple image, one that might have been obtained with greater economy. But it was nothing of the sort. Sarcevic concentrates on throwaways, neglected signs