Original 1st printing 14 x 20" benefit concert poster (*for NFWA (National Farm Workers Association), featuring Stoneground appearing with Frontier Mason at the Napa (CA) County Fairgrounds on 9/17/1972.

 Artist unknown/not credited, medium-thin flat vellum stock poster is in very good to excellent (B/B+ to B+) condition; aside from a few tiny "mouse bite" nips out of the bottom/left margins, a couple of ultra-soft corner-tip/edge bends and a few light handling dings/minor surface scuffs hiding within the image area, it is a VERY sharp example of this uncommon early-'70's farmworkers benefit poster from Napa.