| Reference Number | TPC/5/8/56 |
| Title | National (Lower) Theatre Windlass Counterweighting Details |
| Level | Item |
| Date | 16 September 1974 |
| Description | Hall Stage Equipment Ltd drawing number Y-90/14. Drawn by B D. Reference number L.0904. |
| Extent | 1 drawing |
| Series | Hall Stage Equipment Ltd Drawings |