Robert Müller was a well-known Swiss artist, a pioneer of iron sculpture, who worked in increasingly abstract styles as his career evolved, eventually progressing towards multi-piece metal assemblages.
Featured image: Robert Müller - Untitled, 1973
(detail). Original woodcut engraving on wove paper. 25 3/5 × 19 7/10 in. 65 ×
50 cm. Edition of 200. This is part of a limited edition set. Photo courtesy