| Reference Number | TPC/5/8/25 |
| Title | National (Upper) Theatre Wagon Track Drive Diverter |
| Level | Item |
| Date | 18 December 1973 |
| Description | Hall Stage Equipment Ltd drawing number Y-75/12, reference number L0901. Drawn by [H A C]. |
| Extent | 1 drawing |
| Series | Hall Stage Equipment Ltd Drawings |