| Reference number | NLB/72/923 |
| Alternative reference number | NLB/72 p490 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Messrs Newton and Co.; 72 Whigmore Street, W.1. |
| Date | 30 June 1930 |
| Description | 'With reference to your letter of May 15th last I shall be glad if you will supply 50 pairs of Carbons for use with our Epidiascope [projector] in accordance with the specification mentioned in your letter,' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |