| Reference number | NLB/54/770 |
| Alternative reference number | NLB/54 p437 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Messrs Harrison & Sons |
| Date | 19 September 1917 |
| Description | 'Designation Change.
In future please address the undermentioned Fellows as
Sir Dugald Clark
Sir Herbert Jackson
Sir Richard Threlfall'. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |