Original 1st printing 8&3/8 x 9" concert flyer for the Sparrow (proto-Steppenwolf) appearing at the Matrix in San Francisco, CA from 4/28-30/1967. 

 

 Artist unknown/not credited (possibly Leidenthal), thin slightly rough vellum stock flyer (this is the yellow stock version- we have the pink stock version listed separately) is in excellent (B+) condition; just a few soft handling dings and a pair of flattened horizontal/vertical folds, otherwise fine.

 

 Uncommon early-'67 Matrix flyer with and amusing design.