The UCM number was assigned at the various photographic sessions. The largest number assigned is 1490. However, only 1319 slabs/specimens were actually photographed. Several sequences of numbers were not used owing to the casual nature of Track Meet 3. A few isolated numbers are also missing. The missing sequences are:

572-601
657-660
846-870
892-900
991-1020
1130-1140
1175-1201

Updated: 14 April 2002