17x22-3/8" original printing poster for Dec. 10, 1967 concert that was to take place at The Factory in Madison, WI that would have featured Soul/R&B legend Otis Redding and The Bar-Kays and The Grim Reapers. A poster of some notoriety, as it was this concert that Redding was en route to when his just-purchased Beechcraft twin-engine plane crashed in a lake near Madison, killing all but one aboard. Just four days earlier, Redding had recorded the vocals to the song he and Stax guitarist Steer Cropper had just written, the soon to be number one classic "(Sittin' On) The Dock Of The Bay." After a Dec. 8th show in Nashville, TN and an appearance on the syndicated "Upbeat" TV show in Cleveland, OH the following day, Redding and his band, The Bar-Kays, boarded the fateful flight to Madison. The Grim Reapers (which included future Cheap Trick members Rick Nielsen, Tom Peterson and Bun E. Carlos) opened the show and announced the accident after their set and offered refunds to the shocked audience. Poster features University of Wisconsin student-designed art showing woman standing amongst foliage w/"Tenderness" text block at bottom center, a reference to Redding's hit cover of the song "Try A Little Tenderness." A heart pierced w/brambles appears at lower right. Poster has just trace aging to extreme margins. Poster has been mounted just at corners to larger "Tru-Tone" sheet and could be removed if so desired. Reverse of poster has a small area of surface paper wear from mounting, but this does not affect front's display, which remains NM. Extremely limited print run of just 100, 50 of these posters were printed on yellow stock and 50 on purple. A reprint was done in 1981 and is clearly marked w/small "R-81" at bottom. This example bears no such mark. This poster comes to us from the original owner who worked at The Factory and includes a LOA from him noting how/why poster was obtained. Authenticity has also been verified by Ken Adamany, The Factory venue owner who would go on to manage Cheap Trick and other bands. Only a couple of the yellow stock posters have come to auction in the ensuing decades, this being the first example of the extremely rare purple stock poster offered at auction that we know of. A true concert poster rarity.