||Original 1st printing 15&1/2 x 23&1/8" concert poster for the 6/13/1975 Orange County Jam, held at the Anaheim Convention Center in Anaheim, CA and featuring Hot Tuna (Jorma Kaukonen and Jack Casady of Jefferson Airplane), John Mayall, Honk, the Sons of Champlin and Les Moore. Art by Rick Griffin, image is featured in the Art of Rock book on page 372 (plate 4.123). Medium-thick flat index stock poster is in excellent condition. Not linen backed. This poster is for a concert in Orange County, and from one of the home areas of the artist Rick Griffin.