Original 1967 1st printing 13&7/8 x 19" promotional/head shop poster for local San Francisco FM rock radio station KMPX. Designer/photographer unknown, medium-thick flat vellum stock is in excellent to near mint (B+ to B+/A-) condition; a light amount of handling wear/creasing along the upper right edge, a couple of tiny indentations in the bottom right corner, a touch of edge wear and a couple of stray subtle age spots in the cloud to the right of "X" , otherwise fine. A very unusual oddball early San Francisco poster for the pioneering FM station.