| Reference number | NLB/72/784 |
| Alternative reference number | NLB/72 p420 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Secretary of the National Physical Laboratory |
| Date | 28 April 1930 |
| Description | 'I should be grateful if you would have the enclosed Soiree invitation sent on to Mr [David] Pye, who is a member of the General Board of the Laboratory, and for whom I have no address.' [Enclosure not present.] |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |