Original 1st printing 8&1/2 x 3&3/8" concert handbill for Big Brother & the Holding Company (featuring Janis Joplin) appearing with the Oxford Circle on 8/5/1966, plus rock & roll pioneer Bo Diddley appearing with the Sons of Adam on 8/6/1966, both shows held at the Avalon Ballroom in San Francisco, CA.
Art by Stanley Mouse and Alton Kelley, image ("Dollar Bill") is # 19 in the Family Dog/Avalon series.
Thin flat stock handbill is in very good to excellent (B/B+ to B+) condition; a set of tiny pin/tack holes in all four corners along with a few stray handling dings/tiny bends (nothing too serious), a tiny smudge/stain and a small amount of blue pen scratch (1966) on the reverse (doesn't bleed through to the front of the image), a very hard-to-see diagonal bend in the right margin/upper right corner (about 2" long) and the slightest whisper of toning, otherwise fine- it actually presents itself quite nicely.
This being one of the odder-sized early Family Dog handbills, not very many of them survived in good condition. This particular example is one of the nicer-looking ones I have come across.