| Reference number | NLB/71/196 |
| Alternative reference number | NLB/71 p100 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to R. S. Colves Esq., Clifton, Bristol |
| Date | 7 February 1928 |
| Description | Tells R. S. Colves to contact one of the Gramophone companies, as they will be in a better position to answer the enquiry on recording the vibrations of the human voice. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Letter has been repaired with tape. |
| Access status | Open |