Vintage lithograph by German painter and printmaker Georg Karl Pfahler. Abstract geometric composition with beautiful colors with contrasting black blocks. A true piece of concretism. Hand signed by the artist on front. 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. Hand made at professional framing company of high quality. Frame size: 34.5 x 33.5 cm.