A 1975 exhibit at the Silvermine featured gigantic, floor-to-ceiling drawings done with a brush. The act of drawing on a wall surface with a brush using reddish sepia is a rather outdated art technique anchored in Renaissance tradition. It becomes symbolic of the story Riley tells about the rapid disappearance of manual craftsmanship. Its bringing something new into an era that people have lost understanding of  to see someone actually doing a craft operation. They are seeing someone drawing on a wall, they wonder what can this be?