Longtime Eastern rivals, the Celtics and Knicks are the subjects of these voluminous original negatives, all of which come directly from one of the Celtics' official team photographers. Some show the battle between superstars Bill Russell and Clyde Frazier during the 1969 and 1972 seasons. The quality is top-notch, supremely professional and suitable for reproduction and potentially a future revenue stream. There are no copyrights on these so rights can still be obtained.