| Reference number | NLB/73/236 |
| Alternative reference number | NLB/73 p117 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to G. H. Gabb, Esq |
| Date | 23 March 1931 |
| Description | Gives thanks on behalf of the Soiree Committee for the offer of the exhibit 'The Dioptrical Paradox, or Optical Deception', and will arrange room for it at the 20 May [1931] Soiree. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |