Original 1st printing 14 x 20" concert poster for the Chambers Brothers appearing with Iron Butterfly at the Avalon Ballroom in San Francisco, CA from 4/28-29/1967.

 Art by (and SIGNED in pencil by) Victor Moscoso, image is # 59 in the Family Dog/Avalon series.

 Medium flat index stock poster is in fantastic mint/near mint (A/A- to A-) condition; aside from a bit of ink spread long the top margin and a well-hidden pinch ding or two, this example looks just about as clean as the day it was issued.

 A very crisp and vibrant ARTIST-SIGNED example of this classic 1967 Moscoso image.