| Reference Number | TPC/5/2/127 |
| Title | National Theatre Small Speaker Installation |
| Level | File |
| Date | 04 July 1972-05 July 1973 |
| Description | Theatre Projects Consultants Ltd (preliminary) drawing number 904/343, sheet 1, unnumbered issue and issue 4. |
| Extent | 2 drawings |
| Series | Theatre Projects Consultants Ltd Drawings |