Original first printing 14 x 19 & 7/8 concert poster for the Daily Flash, Quicksilve Messenger Service, and Country Joe & The Fish at the Avalon Ballroom in San Francisco, Ca, on 11/18/1966.
 
Art by Stanley Mouse and Alton Kelly. Image is #35 in the Family Dog series.
 
Poster is in good vintage condition.  There are tears in both corners, a few tackholes and light edgewear.  Otherwise nice.