BG227 was a study of forms: the parallel chambers of the nautilus released, or perhaps contained, the stuff of galaxies, and the brightly-defined triangle represented the spiritual. The pure beauty of the design made BG227 a piece of original art. The concert was another example of Bill Graham serving the fans both what they wanted and what they needed: The Grateful Dead and Miles Davis. The 1st printing poster lacks the “W” found after the No. 227 on the reprint. It measures 14″ x 21″ and was printed before the concert. The 2nd printing displays a white “W” after the No. 227 in the bottom left hand margin. It measures 14″ x 21″ and was printed after the concert.