Pictured is "Staccato" by Yaacov Agam, an Israeli artist who became a leading figure in the op art movement.  Search “시흥오피【OP030.컴】시흥오피((그램))공방ꇵ시흥오피㋲시흥오피ग시흥셔츠룸ꂢ시흥유흥ᗛ시흥안마կ시흥마사지” from This is What Design Looked Like in Israel in 1965