| Reference Number | TPC/5/6/154/1 |
| Title | Electrical Circuit Two Speed Hand Rail |
| Level | Item |
| Date | 22 August 1974 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D14-329. Drawn by J T. Works number 2815. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |