Original 1st printing 22&1/2 x 14&1/4" concert poster for Elvin Bishop appearing with Stoneground at Earth in San Diego, CA from 9/24-26/1971.

 Artist unknown/not credited medium-thick flat index stock poster is in used (B-) condition; there are large fossilized tape marks in all four corners (and on the reverse side, along with a couple of surface pulls), along with a pronounced vertical center crease/bend with a bit of pronounced creasing around the "B" of "Bishop", a moderate amount of edge wear/creasing, a bit of mild paper toning, a couple of decent-sized diagonal corner bends... definitely a well-traveled artifact.

 Conditional issues aside, still a pretty obscure Southern California concert poster that doesn't turn up everyday.