| Reference Number | TPC/5/6/315 |
| Title | General Arrangement and Operation of Smoke Vents (Upper Theatre Fly Tower) the National Theatre |
| Level | Item |
| Date | c 1973 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D18/179. Drawn by G R S Tryco. Works number 3091. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |