Original 1st printing 13&1/8 x 19" concert poster for Quicksilver Messenger Service with the Other Half and the (Steve) Miller Blues Band at the Avalon Ballroom in San Francisco, CA on 1/6-7/1967. Art by Victor Moscoso, image is # 42 in the Family Dog/Avalon series. Medium flat vellum stock poster is in excellent (B+) condition; a whisper of handling, a slight surface mark above "Dance", a trace amount of edge/corner wear, a tiny discoloration/smudge in the center of the ticket outlet strip (over "Sandal"), a couple of miniscule tape marks and a tiny pen scratch (the original owner's name/address) on the reverse, otherwise fine. Very early 1st printing Moscoso Avalon poster with a BEAUTIFUL design.