Original 1st printing 11&1/4 x 20&1/2" concert poster for Quicksilver Messenger Service appearing with the Charlatans and Congress of Wonders at the Avalon Ballroom in San Francisco, CA from 12/15-17/1967.

 Art by Stanley Mouse, image ("Dance") is # 96 in the Family Dog/Avalon series.

 Medium flat index stock poster is in mint/near mint to near mint (A/A- to A-) condition; a nearly-flawless example of this very pretty late-'67 Mouse image from the Avalon series.