| Reference Number | TPC/5/6/139 |
| Title | Electrical Schematic Disc to Stage Locks |
| Level | Item |
| Date | 18 September 1975 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D14/298 issue B. Drawn by S W. Works number 2815/137. Original date 4 September 1974. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |