| Reference Number | TPC/5/2/107/3 |
| Title | National Theatre Working Light System Switchboard TP3 |
| Level | Item |
| Date | c 1974 |
| Description | Theatre Projects Consultants Ltd drawing number 904/259. For notes and symbols, see drawing number 904/254. |
| Extent | 1 drawing |
| Series | Theatre Projects Consultants Ltd Drawings |