This is an Original vintage 1967 psychedelic concert poster featuring legendary San Francisco bands Moby Grape and Big Brother and the Holding Company during the height of the Summer of Love era. Designed by psychedelic artist Lichtenwalner and signed in plate Lichtenwalner’67. This striking fluorescent day-glo poster advertises a dance concert at Gate 6 / The Ark in Sausalito on Saturday, October 14, 1967, with additional appearance by Sons of Champlin and lights by Funny Co. Features vivid neon pink, orange, purple, and green inks with flowing psychedelic typography and ornate Art Nouveau-inspired border graphics characteristic of the late-1960s San Francisco psychedelic poster movement. Poster text includes: Moby Grape Big Brother & The Holding Company Sons of Champlin Gate 6 / The Ark Saturday Oct. 14 Dance Concert Lights by Funny Co. Colors remain exceptionally vibrant with strong blacklight-era fluorescence. Please examine all photos carefully for exact condition. A highly collectible piece of San Francisco Bay Area psychedelic rock history connected to the legendary late-1960s counterculture music scene and early performances associated with the era of Janis Joplin.