| Reference Number | TPC/5/6/175 |
| Title | Proposed Scheme for Measuring Torque to Turn Drum Revolve |
| Level | Item |
| Date | c 1979 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D.14-420. W.O. 5551. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |