Original 1st printing 8&1/2 x 3&3/8" concert handbill for Big Brother & the Holding Company (with Janis Joplin) appearing with Oxford Circle on 8/5/1966 and Bo Diddley appearing with Sons of Adam on 8/6/1966, both shows held at the Avalon Ballroom in San Francisco, CA.

 Art by Alton Kelley with Stanley Mouse, image is # 19 in the Family Dog/Avalon series.

 Thin flat stock handbill is in decent (B/B-) condition; there are a series of tiny pin-prick splatter stains, thin vertical/diagonal bends and light to moderate creases throughout, along with a bit of uneven toning, a few tiny edge dings/nips scattered around the outer margin area and a bit of staining on the reverse, otherwise OK... definitely a survivor, but intact.