14x21" original first print poster on medium flat stock. For concerts June 18-20 and 21-23, 1968 featuring the Chambers Brothers w/It's A Beautiful Day and Crazy World of Arthur Brown, and Quicksilver Messenger Service w/Sly & the Family Stone at the Fillmore Auditorium in San Francisco, CA. Also included is 4.5x7.25" postcard w/calendar back. Striking psychedelic art by Lee Conklin featuring intertwined body parts creating a plethora of hidden images. Postcard has only a tiny crease at top right corner. Poster has slight corner bumps and trivial handling at lower left. Both remain NM.