| Reference Number | TPC/5/5/49 |
| Title | Perimeter Duct Between Plant Rooms 9 and 12, Level 79.50, Conduit Layout |
| Level | Item |
| Date | 28 August 1973 |
| Description | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest drawing number E/Wc/3354 issue D. Drawn by J H. Original date 31 May 1972. |
| Extent | 1 drawing |
| Series | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest Drawings |