Officially licensed 2008 printing (Rhino Entertainment stamp on the reverse) 37&1/2 x 318&7/8" oversized lithograph print of a concert poster for Big Brother & the Holding Company (featuring Janis Joplin) appearing with Oxford Circle on 8/5/1966 and 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 (and SIGNED and numbered 393/500 in pencil by) Stanley Mouse and Alton Kelley, image ("Dollar Bill") is # 29 in the Family Dog/Avalon series. 
 
 Extra-thick oak-tag vellum stock lithograph is in near mint to excellent (A-/B+ to B+) condition; there are rough/hand-cut edges (as issued), along with a 1&1/2" soft diagonal bend in the upper left corner and a few light handling creases scattered around the outer margins, otherwise it is a SUPERB example of this extra-large DOUBLE-ARTIST-SIGNED edition of the classic "Dollar Bill" image.