measures approx 31" h x 22"w marks at bottom G2325 Knowledge is Power photo by H.J. Peyer for Plastic Heros. also on bottom edge @1978 Wizard B. Genius P O. Box 33, CH8706 Meilen, Switzerland. also HB-210 Hua Li Art Gallery No. 47 Hanko St. Sec. 2 Taipei Taiwan. A couple light scratches, a couple small tears on edge two sides. There appears to be light water stain on back of poster pictured. non smoking home. A true collector's item.