Kaspar Thomas Lenk was a German sculptor, draftsman and printmaker whose style changed from figurative to abstract around 1955.
Featured image: Kaspar Thomas Lenk - Untitled, 1972 (detail). Screenprint. 25 1/2 × 18 1/2 in. 64.8 × 47 cm. Edition XXXVI. This is part of a limited edition set. Photo courtesy RoGallery