Original 1st printing 5&1/2 x 13" concert flyer for the Tom Northcott Trio appearing at the Matrix in San Francisco, CA on 7/19/1966. 
 
 Art by William Reid, medium-thin textured vellum stock flyer is in decent/used (B/B- to B-) condition; there is an approximately 1" diagonal wedge of paper missing from the upper left corner, along with tiny tape pulls and slivers of clear trape in the other three corners, a few tiny pin-prick spots in the upper right margin/corner, a hint of handling and a hand-torn/rough bottom edge (not sure if it was issued this way)... either way, it's still a pretty early/scarce Matrix piece, not one you see very often.