Ahlgren, Roy B. (American, 1927-2011), Concatenation, 1971, serigraph on paper, signed titled, dated and numbered 29/100 in pencil to the lower margin, image size 18 inches square, sheet size 20.25 inches square, unframed. Provenance: acquired directly from the artist. A rare and early print from this op-art master. In good condition, faint mat burn and some light staining in the margins. Merchandise will be packed and transported by the purchaser at their own risk and expense. A list of recommended shippers is on our website: https://www.conceptgallery.com/auctions/shipping/ .