| Reference Number | TPC/5/6/158 |
| Title | Layout and Details of Limit Switches for Disc Revolve Traps |
| Level | Item |
| Date | 01 October 1974 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D14/344. Drawn by B M T M. Works number 2815-153. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |