Original 1st printing 13&5/8 x 22" concert poster for the Grateful Dead with Otis Rush & His Chicago Blues Band and Canned Heat at the Fillmore Auditorium in San Francisco, CA on 2/24-26/1967. Art by Wes Wilson, image is number 51 in the Bill Graham/Fillmore series. Medium-thick flat vellum stock poster is in excellent to near mint (B+ to B+/A-) condition; a small light stain just above the "u" of "Grateful", very subtle/light toning along the extreme upper left and right edges and a tiny bit of edge wear, otherwise as crisp an example as there is- physically it's essentially clean, the only issues are minor cosmetic ones. One of the nicest examples of the BG 51 that I've personally come across.... a real beauty.