-Chambers Brothers / Iron Butterfly / Familt Dog; Avalon Ballroom San Francisco 27/28 April 1967, VERY RARE! 1967 USA original 'Family Dog Pructions' art psych Concert Poster, measures approx 14" x 20", used VG (tears at left corners, pin holes, several small tears at edges) condition, ideal to be framed!!(Family Dog Pructions No.59-1)