The product is an original 1966 concert poster featuring Butterfield Blues Band, Jefferson Airplane and the Grateful Dead. Part of Bill Graham’s Filmore West series. Signed by Wes Wilson. Measuring 24-1/2″ x 12″, this piece of music memorabilia captures a significant moment in the rock and pop music genre. Created in the United States, this poster is a rare and valuable collectible item for fans of both Bill Graham and the Grateful Dead. Designed by Wes Wilson. This is a 1st run poster in near mint condition.