Original 1st printing 16&5/8 x 21&1/2" concert poster for Big Brother & the Holding Company (featuring Janis Joplin), appearing with the Electric Flag (with Buddy Miles and Mike Bloomfield) and Sweetwater at the Earl Warren Showgrounds in Santa Barbara, CA on 2/3/1968.
Art by Frank Bettencourt, medium-thin flat index stock poster is in excellent (B+) condition; a couple of soft handling bends scattered here and there, a thin vertical bend/indentation in the lower right margin (from the "e" of "Feb" up to the first "r" of "Warren"), and a couple of tiny corner bumps, otherwise fine.
Nice-looking ORIGINAL early '68 Big Brother poster from the Salzer Earl Warren series. Check out this GREAT blog post featuring info on a bunch of shows held at Earl Warren (including this one) HERE;
http://earlwarrenshowgroundsetal.blogspot.com/2010/09/earl-warren-showgrounds.html