Erwin NEUMANN WILHELM THONY - 24 AQUARELLE (Thony, Wilhelm). WILHELM THONY - 24 AQUARELLE by Erwin Neumann. Rosenbaum, Wien, 1957. 4to., cloth, DJ, 14pp. text in German and 24 plates. Fine, DJ has small tears. Inventory # 7303 Price: $12.50 Add to Cart