Original 1st printing 17&3/8 x 22&1/2" concert poster for Jefferson Airplane appearing with Ten Years After, the Sons of Champlin and Congress of Wonders at Balboa Stadium in San Diego, CA on 7/27/1969. 

 Artist/designer unknown (printed by Bindweed Press of San Francisco), image is featured in the Art of Rock book on page 286 (plate 3.99). 

 Medium-thick flat vellum stock poster is in excellent (B+) condition; aside from a bit of minor edge toning/wear around the outer margin area, a pair of thin dark scuff marks in the upper right/lower left margins and a light amount of handling wear, it is a VERY nice-looking example of this always-popular Southern California Jefferson Airplane/Ten Years After concert poster from a large outdoor stadium show. Read more about this show (and other concerts) held at Balboa Stadium HERE:

https://sandiegotroubadour.com/balboa-stadium-music-in-the-landing-pattern/