"57" appears below and right of the "s" in "Tickets". On the poster believed to be the original there is a small orange blob over the blue background behind the center of the letter "P" in "April". This blob is approx. 1/16" x 3/16".Events: Winterland: 03/31/1967 & 04/01/1967 Fillmore Auditorium: 04/02/1967
