“The Grass Roots, The Daily Flash, The Sopwith Camel, Bill Ham” Poster Added by Unknown 1685 on Jul 7th, 2020 Date 1966 Credits Wes Wilson 10 Format Poster 1707 Type of Work Finished work 5482 Publishers Family Dog 6 Concert promoted by Bill Graham at Avalon Ballroom, San Francisco. Tags 1960s60srockconcertpostersPosterPrintmulticolorCaliforniapsychedeliccountercultureLetteringTypographyIndepeArt NouveaupromotionEvent Promotionnontraditional formatmusicpopular culture