Ryman's work is an exploration of the fundamental elements of painting: support, paint, brushstroke and the relationship to the wall. Colour is eliminated in order to focus more clearly on these. This painting is one of a group of paintings Ryman made during 1982-3 that are constructions which incorporate fibreglass panels and aluminium brackets. Ryman used enamel paint in these works because it appears translucent when applied to fibreglass. In 1976 Ryman began to integrate external wall fasteners into the composition of his works. In 'Guild', the aluminium brackets are a structural part of the painting. They function as a bridge between the painting and its supporting wall, thereby expanding the visual territory of the painting to include the space in which it is shown.