Original 1st printing 9x14&1/2"concert poster for Electric on the Eel, Featuring Jerry Garcia Bands, bluegrass, acoustic, and electric at French's Camp at the Mendocino/Humbolt County border in CA, on 8/29/1987.
 
Art by Theos Chapman.
 
Good vintage condition.  There is edgewearand creases on the paper.  Also, the corner has been folded.