“The Grass Roots, The Daily Flash, The Sopwith Camel, Bill Ham” Poster Added by Unknown 1684 on Jul 7th, 2020 Date 1966 Credits Wes Wilson 15 Format Poster 1993 Type of Work Finished work 5562 Publishers Family Dog 6 Concert promoted by Bill Graham at Avalon Ballroom, San Francisco. Tags 1960s60srockconcertpostersPosterPrintmulticolorCaliforniapsychedeliccountercultureLetteringTypographyIndepeArt NouveaupromotionEvent Promotionnontraditional formatmusicpopular culture