| Reference Number | TPC/5/7/45/1 |
| Title | Proposed Hoist Control Position Upper Theatre - National (Ref L9 83.50 Level) |
| Level | Item |
| Date | 10 May 1974 |
| Description | Evershed Power-Optics Ltd drawing number W6970 issue A sheet 2 of 2. Drawn by R King. |
| Extent | 1 drawing |
| Series | Evershed Power-Optics Ltd Drawings |