16.75x20-3/8" Bainbridge artboard w/original pen and ink art by "Pogo" creator Walt Kelly for the back cover to Simon and Schuster's 1961 "Pogo" reprint book, "Gone Pogo." While the actual book featured reprints of Kelly's famed strip, this back cover art is all original and created exclusively for this publication. Art depicts P.T. Bridgeport Bear pointing to extensive text banner done in the style of a letter w/large "Greetings" text. Pogo and Albert Alligator are seen at bottom right looking up at letter. Text relates to book content in typical back cover fashion, but w/Kelly's whimsical flair. Amongst the hand-lettered text are a number of small hands pointing to key points, including "Gone Pogo" book title. Facsimile letter has "Simon And Schuster" names at bottom. Artboard has frosted acetate overlay attached w/tape along left and is marked "100% Red" at bottom center. This has had hand-painted red accents added as they appear on the book itself, including to "Greetings" text, P.T. Bridgeport Bear's jacket and spats, Albert's hat and Pogo's hat and sweater as well as additional accents amongst the lettering. Both overlay and artboard have aged printer's centering tape at margins. Artboard has Kelly's preliminary blue pencil art/lettering visible in areas w/additional notes in blue pencil at lower left. Scattered edge/corner tip wear, but art remains clean and would display Exc. if matted and framed. Comes w/worn reading copy of the book this art is featured on.