| Reference Number | TPC/5/7/42 |
| Title | Drum Revolve Control Equipment - National Theatre (Upper) Ref. Co-ordinates H-7 |
| Level | Item |
| Date | 24 April 1974 |
| Description | Evershed Power-Optics Ltd drawing number W6944 issue A [sheet 1 of 2]. Drawn by R King. |
| Extent | 1 drawing |
| Series | Evershed Power-Optics Ltd Drawings |