| Reference number | NLB/54/547 |
| Alternative reference number | NLB/54 p310 |
| 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 | 14 June 1917 |
| Description | Notes that a representative of Messrs E. Dent & Co. Ltd recently timed the Society's Shelton Clock which showed the Clock to be losing at the rate of 22 seconds in a week. Asks Messrs E. Dent & Co. to send a competent man to regulate it. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |