| Reference number | NLB/54/638 |
| Alternative reference number | NLB/54 p363 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Messrs E. Dent & Co. Ltd.; 61 Strand, W.C. |
| Date | 10 July 1917 |
| Description | Notes that no response has been received to his earlier enquiry about the regulation of the Shelton Clock here and asks that Messrs E. Dent & Co. Ltd. give this matter their attention. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |