Original 1st printing 8&1/2 x 11" concert flyer for Texas blues legend Lightnin' Hopkins appearing at the Matrix in San Francisco, CA from 10/7-16/1966. 
 
 Art by Tom Weller (not credited), thin flat stock flyer is in decent/used (B/B- to B-) condition; there are semi-flattened horizontal/vertical creases, along with large tack holes in the upper left and bottom center margin, small wedges of missing paper in the lower left corner and bottom center margin, a series of light pin-prick glue stains in the bottom center margin, a moderate degree of handling wear/creasing, a bit of uneven toning, several randomly-placed pin/staple holes scattered around the outer margin area and a few light edge stains... definitely a bit on the well-worn side, but still a presentable-enough example of this fairly early (and hard-to-find) Matrix flyer.