Printed Superman Sunday comic strip, 14.75 x 10.25, clipped from the March 31, 1946, Sunday edition of the Seattle Times, signed in the top border in black ballpoint by Jerry Siegel and Joe Shuster. Uniform toning, and a few small edge tears, otherwise fine condition. Accompanied by a letter of authenticity from James Spence, as well as a letter from Jim Hambrick, curator of the Supermuseum. RR Auction COA.