| Reference number | NLB/61/786 |
| Alternative reference number | NLB/61 p444 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to [Sir Joseph Ernest Petavel,] the Director of the National Physical Laboratory |
| Date | 26 October 1921 |
| Description | 'In reply to your letter of the 25th instant I will reserve the meeting room of the Society for the General Board of the Laboratory on December 15th at 3.30 p.m.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |