14.5x21.5" stiff paper original printing poster for July 15-16, 1967 event held at Devonshire Meadows Speedway Northridge, CA. Performers listed are "Jefferson Airplane, Doors, Grassroots, Iron Butterfly, Country Joe And The Fish, Canned Heat, BFD, BLS Band, Many 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-like 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. VF.