Quicksilver Messenger Service at Avalon Ballroom - 1966 (Poster)

Vintage poster promoting shows with Quicksilver Messenger Service, Big Brother & The Holding Co., & Country Joe & The Fish at Avalon Ballroom on November 25 & 26 in 1966. Designed by Victor Moscoso. FD36 50 written in pencil on the back.

Measures 15x20 inches. Some wear and tear near the edges, see photos.