Big Brother & The Holding Company at Avalon Ballroom - 1967 (Poster)

Vintage poster promoting shows with Big Brother & The Holding Company, The Charlatans, and Blue Cheer at Avalon Ballroom on March 31st and April 1st, 1967. Designed by Victor Moscoso. 

Measures 14x20 inches. Some wear and tear along the edges. See photos.