| Reference Number | TPC/5/5/25 |
| Title | Conduit Layout, F.O.H. Staircase O1, O2 and O4, Level 69.50' |
| Level | Item |
| Date | 17 December 1971 |
| Description | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest drawing number E/Wc/2556 issue A. Drawn by S W W. Original date 4 March 1971. |
| Extent | 1 drawing |
| Series | Denys Lasdun & Partners / Flint & Neill Ltd / Davis, Belfield & Everest Drawings |