| Reference Number | TPC/5/6/403 |
| Title | Details of Top and Bottom Steels for Lower Theatre Safety Curtain the National Theatre |
| Level | Item |
| Date | 26 October 1973 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D18-307. Drawn by D Cox Tryco. Works number 3089. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |