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, image is featured in the Art of Rock book on page 286 (plate 3.99). 

 Medium-thick flat vellum stock poster is in very good to excellent (B/B+ to B+) condition; a set of tack/pin holes (all four corners), a 1" horizontal edge tear in the lower right margin, light handling wear, a few thin corner creases and a 3-4" soft diagonal bend in the lower left margin, otherwise fine. 

 Very cool low-run Southern California Jefferson Airplane/Ten Years After poster from a large outdoor stadium show. Read more about this show (and other concerts) held at Balboa Stadium HERE;

http://sandiegotroubadour.com/2012/06/balboa-stadium-music-in-the-landing-pattern/