Original 1st printing 14&1/4 x 20" concert poster for Quicksilver Messenger Service appearing with the Sons of Champlin and Blackburn and Snow at the Avalon Ballroom in San Francisco, CA from 10/28-29/1966.
 
 Art by Victor Moscoso, image ("Chicken On A Unicycle") is # 32 in the Family Dog/Avalon series.
 
 Medium-thick flat vellum stock poster is in excellent (B+) condition; there are tack holes in all four corners, along with a tiny crease/nip tear in the lower right margin, a touch of handling wear and a set of clear tape remnants on the reverse, otherwise fine.

 A VERY nicely-preserved example of this semi-early Family Dog poster.