| Reference number | NLB/72/143 |
| Alternative reference number | NLB/72 p74 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Professor G. P. Thomson; Marischal College, Aberdeen |
| Date | 19 April 1929 |
| Description | 'In reply to your letter of yesterday's date, I am sorry to say that we have no tubular lamps here. The voltage is 105, but it is possible to get as much as 200 if required.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |