Original 1st printing 8&1/2 x 11" concert flyer for the Yellow Brick Road appearing at the Matrix in San Francisco, CA from 3/31-4/2/1967. 
 
 Art by Leidenthal, image is featured in the Art of Rock on page 164 (plate 2.114) 

Thin flat stock flyer is in near mint to excellent (A-/B+ to B+) condition; aside from a slight pressure crease/stress bend in the upper left corner and a few well-camouflaged handling dings hiding within the image area, it is a VERY sharp example of this whimsical early-'67 Matrix concert artifact from the AOR.