Original 1st printing 14 x 20" concert poster for Quicksilver Messenger Service appearing with Kaleidoscope and Charley Musselwhite at the Avalon Ballroom in San Francisco, CA from 1/12-14/1968.
 
 Art by Rick Griffin, image ("Eternal Reservoir") is # 101 in the Family Dog/Avalon series.
 
 Medium-thin flat index stock poster is in very good (B/B+) condition; there are a couple of thin horizontal roll creases along the bottom margin, with a small diagonal bend in the lower left corner tip, a few tiny pressure dings scattered around the outer margin area, a 1" bend in the left center margin, a stray soft pinch ding or two and a series of light tape pulls on the reverse, otherwise fine.

 Really nice-looking 1st printing example of this always-popular Rick Griffin image.