Original 1st printing 8&1/2 x 11" concert flyer for the Sparrow (featuring several members of Steppenwolf) appearing at the Matrix in San Francisco, CA from 5/9-11/1967.
Art by Jack Downing, thin flat stock flyer is in ultra-sharp near mint (A-) condition; just a couple of nearly-invisible handling bends in the upper/lower right margins and a stray surface ding or two, otherwise fine.
Cool-looking oddball Matrix flyer in really great shape.