| Reference Number | TPC/5/4/139 |
| Title | Lower Plan Levels 27 and 30.50, 24.75 (e) |
| Level | Item |
| Date | 01 February 1974 |
| Description | Denys Lasdun & Partners drawing number 552/01/4007 issue T. Original date 6 June 1979. |
| Extent | 1 drawing |
| Series | Denys Lasdun & Partners Drawings |