| Reference Number | TPC/5/5/23 |
| Title | Conduit Layout, F.O.H. Staircase O1 and O2, Level 49.00 |
| Level | Item |
| Date | 04 March 1971 |
| Description | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest drawing number E/Wc/2554. Drawn by S W W. |
| Extent | 1 drawing |
| Series | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest Drawings |