14.5x21.5" stiff paper original printing poster for July 15-16, 1967 event held at Devonshire Meadows Speedway in Northridge, CA. Performers included - Jefferson Airplane, Doors, Grassroots, Iron Butterfly, Country Joe And The Fish, Canned Heat, BFD, BLS Band and others. Text on bottom margin reads "Circle Printing - Los Angeles - Poster Design - The Gates Of Eden, Penny Harvard - 1967." Detailed art at center is of Alphonse Mucha-style maiden in gown adorned by flowers and bells and she holds a jester's cane. On either side are winged bare-breasted angels and around her head are stars. Minor corner tip and handling wear. Exc.