Vintage lithograph by German painter and printmaker Georg Karl Pfahler. Abstract geometric composition with strong colours. A true piece of concretism. Hand signed by the artist on the back side. No. 71/75. No year on the print but most likely 1974 or 1975. Silver metal frame, with double glas visibility to show "Edition Rotloff Karlsruhe" stamp on the backside of print and the signature by the artist.. Hand made at professional framing company of high quality. Frame size: 34.5 x 33.5 cm.