14x21” first printing poster for May 12-13, 1967 concert at the Avalon Ballroom featuring The Doors, Sparrow, Ben Van Meter and Roger Hillyard. Art by Victor Moscoso features 3-D like dual image of angel with subliminal face. Text in bkg. reads “Annabelle’s Butterfly Dance.” Light margin/corner tip wear but poster still displays Exc. Great concert poster for The Doors and Sparrow, who later became Steppenwolf.