| Reference number | NLB/73/133 |
| Alternative reference number | NLB/73 p67 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Secretary, Aeronautical Research Committee, National Physical Laboratory |
| Date | 18 December 1930 |
| Description | Regrets to inform the Alloys Sub-Committee will be unable to book a room for the 28 January [1931] as another Society has already booked for that day [The Challenger Society]. Confirms the booking for the Aerodynamics Sub-Committee on 3 February. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Large tears close to binding. |
| Access status | Open |
| Related records in the catalogue | NLB/73/73 |