| Reference Number | TPC/5/5/48 |
| Title | Perimeter Duct Between Air Conditioning Plant No. 9 and 1, Level 79.50, Conduit Layout |
| Level | Item |
| Date | 21 August 1973 |
| Description | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest drawing number E/Wc/3353 issue D. Drawn by J H. Original date 13 June 1972. |
| Extent | 1 drawing |
| Series | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest Drawings |