Original 1st printing (Maron Litho credit) 17&3/4 x 23&1/4" concert poster for the Youngbloods appearing with Canned Heat, Clear Light and Merry-Go-Round at the Earl Warren Showgrounds in Santa Barbara, CA on 11/25/1967.
 
 Art by Frank Bettencourt, image is featured in the Art of Rock book on page 269 (plate 3.47) and is part of the Jim Salzer Presents series. 
 
 Medium-thin flat vellum stock poster is in excellent (B+) condition; there is a tiny bit of creasing in the top left corner (about 1-2"), along with a VERY soft horizontal roll bend in the upper left margin, a couple of soft handling creases lurking within the image area and one or two tiny nip tears scattered around the outer margin area, otherwise fine. 
 
 Great-looking example of this late-'67 Jim Salzer poster from the AOR; check out a great informative list of 1960's-era shows (including this one) held at the Earl Warren Showgrounds:

http://earlwarrenshowgroundsetal.blogspot.com/2010/09/earl-warren-showgrounds.html