| Reference number | NLB/58/152 |
| Alternative reference number | NLB/58 p85 |
| Level | Item |
| Title | Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to the Secretary of the Aeronautics Advisory Committee, National Physical Laboratory |
| Date | 20 March 1920 |
| Description | Approves the Secretary's request to book a room at the Royal Society on 13 April, 1920, at 3pm. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |