| Reference number | NLB/66/385 |
| Alternative reference number | NLB/66 p213 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr. [Ezer] Griffiths, National Physical Laboratory, Teddington, Middlesex |
| Date | 30 April 1924 |
| Description | Informs that Messrs. Harrisons and Sons have been asked to produce Electros for the required figures and have been asked for the invoice to be addressed to Organizing Secretary, Fourth International Congress of Refrigetaion. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |
| Related records in the catalogue | NLB/66/384 |
| NLB/66/285 |