Original 1st printing 14 x 18" concert poster for the 2/27-3/28/1970 schedule of shows held at the Keystone Korner in San Francisco, CA.

 Shows listed include: AUM (2/27, 3/1 and 3/24), Mike Bloomfield (2/28 and 3/27-28 with Nick Gravenites), Boz Scaggs (3/3-4), Big Brother & the Holding Company (post-Janis Joplin era, 3/5-7), Joy of Cooking (3/10-11), Big Mama Thornton (3/12-14), Luther Tucker (3/17-18), Jerry Hahn (3/19-21), Cleveland Wrecking Company (3/25) and Elvin Bishop (hosting Monday Night Jams on 3/2, 3/9, 3/16, 3/23 and 3/30)

 Design by Paisley Penguin Studios, medium flat vellum stock poster is in very good (B/B+) condition; there are a series of thin semi-pronounced horizontal roll bends traversing the image area, along with a few stray edge/corner-tip bends, a bit of mild paper toning, a few well-camouflaged light surface smudges/handling dings here and there and a single tack hole in the top center margin, otherwise OK. 

Interesting early-1970 San Francisco club schedule poster with a mix of SF locals and blues legends.