| Reference number | NLB/55/623 |
| Alternative reference number | NLB/55 p338 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [William] Newton & Co. |
| Date | 28 June 1918 |
| Description | 'New carbon holder for small lantern concave conducter [?] nickeled' |
| Extent | 1p |
| Format | Manuscript |
| Access status | Open |