| Reference Number | TPC/3/20/5 |
| Title | Carriage and Tower Ass[embl]y National Theatre Masking Screens |
| Level | Item |
| Date | 28 August 1975 |
| Description | Tele-Stage Associates Ltd drawing number B58-14 issue 1. Drawn by R D Barnes. Original date 10 July 1975. |
| Extent | 1 drawing |
| Series | Masking Screen Hoists Operating and Maintenance Instructions |