| Reference Number | TPC/5/7/55 |
| Title | Scenery Hoist Control Desk Pictorial View - Lower Theatre - National |
| Level | File |
| Date | 08 November 1974-05 December 1974 |
| Description | Evershed Power-Optics Ltd drawing number W7137 sheet 3, issues B, C and F. |
| Extent | 4 drawings |
| Series | Evershed Power-Optics Ltd Drawings |