Original 1st printing 14 x 20" concert poster for Quicksilver Messenger Service appearing at the University of San Francisco Gymnasium on 4/15/1967.

 Artist unknown, medium flat vellum stock poster is in ULTRA-CRISP near mint (A-) condition; aside from a VERY soft tiny bend in the lower left corner, it's pretty much as sharp as you can ask for.

 Great-looking Quicksilver concert poster featuring a photo of the original 5-piece lineup.