| Reference Number | TPC/5/6/433 |
| Title | Emergency Release Box Sound/Fire Doors A-G Incl. |
| Level | Item |
| Date | c 1974 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D18/402. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |