| Reference Number | TPC/5/6/225 |
| Title | General Arrangement and Operation of Smoke Vents (Lower Theatre Fly Tower) the National Theatre London |
| Level | Item |
| Date | 16 February 1973 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D.18/76 issue A. Original date 29 January 1973. Works number 3089. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |