Wolfgang Zeller was a German artist who painted oil on cardboard, canvas and wood, and watercolors on cardboard. He also mastered the technique of etching.
Featured image: Wolfgang Zeller - Landschaft,
1922 (detail). Etching. 13 1/5 × 11 3/5 in. 33.5 × 29.5 cm. This is part of a
limited edition set. Photo courtesy Sylvan Cole Gallery