| Reference number | NLB/73/271 |
| Alternative reference number | NLB/73 p135 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir Herbert Jackson, K.B.E., FRS |
| Date | 17 April 1931 |
| Description | Asks whether Sir Herbert Jackson has been able to obtain the exhibits he mentioned to the Soiree Committee, particularly the one regarding the colour of metals by multiple reflections. Towle expresses keenness to complete the programme. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |