| Reference number | NLB/61/68 |
| Alternative reference number | NLB/61 p43 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Messrs Harrison & Sons |
| Date | 4 May 1921 |
| Description | 'Proceedings.
Please make a note to retain only 50 copies of each number of Proceedings sheets in future. These, we understand, are required for binding into volumes.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |