| Reference Number | TPC/5/7/9/2 |
| Title | Drum Revolve Control Panel National Upper Theatre |
| Level | Item |
| Date | 23 November 1973 |
| Description | Evershed Power-Optics Ltd drawing number V4267 issue D (EPO 170/103). Original date 17 September 1973. |
| Extent | 1 drawing |
| Series | Evershed Power-Optics Ltd Drawings |