| Reference Number | TPC/5/10/93 |
| Title | National Theatre Electrical Layout Basement Car Park Sound and Comms. Trunking |
| Level | Item |
| Date | 15 March 1978 |
| Description | Crown House Engineering Ltd drawing number 904/763/R. Drawn by P E T. |
| Extent | 1 drawing |
| Series | Crown House Engineering Ltd (Theatre Projects Consultants Ltd) Drawings |