Original 1st printing 10&7/8 x 14&3/4" concert poster for the Grateful Dead with the Power of Evil, OM and Hemp Plant appearing at the Continental Ballroom in Santa Clara, CA on 10/14/1967. Art by Cannon, medium-thin semi-gloss textured stock poster is in very good (B/B+) condition; one vertical and three horizontal folds (item was folded into 1/8ths and flattened), tiny staple holes in all four corners and a trace of handling, otherwise a great-looking example of this very strange and spooky Grateful Dead image from the Continental. No tapes exist (or have surfaced) from this obscure late-'67 show, it's very mysterious... like this poster.