| Reference Number | TPC/5/6/134 |
| Title | Hydraulic Schematic Red Elevator Locks |
| Level | Item |
| Date | May 1974 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D14/281 issue B. Drawn by S W. Works number 2815/120. Original date 29 May 1974. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |