Original 1st printing 13 x 19&1/8" concert poster for Quicksilver Messenger Service appearing with the Other Half and the (Steve) Miller Blues Band at the Avalon Ballroom in San Francisco, CA from 1/6-7/1967.
 
 Art by Victor Moscoso, image is # 42 in the Family Dog/Avalon series.
 
 Medium flat vellum stock poster is in very good to excellent (B/B+ to B+) condition; there are tack/staple holes in all four corners, along with a couple of tiny edge/corner-tip creases, a whisper of handling wear and a series of nearly invisible soft horizontal roll bends along the left/right right margins, otherwise it is a VERY nice-looking gently-used 1st printing example of this always-popular early-1967 Moscoso Avalon poster.