| Reference number | NLB/22/590 |
| Alternative reference number | NLB/22 p349 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, to Messrs Harrison & Sons |
| Date | 10 June 1901 |
| Description | 'Please make electros of Figures One and Nine in Shelford Bidwell's 'Negative After-Images', and send them to the Editor of 'Nature'.' |
| Extent | 1p |
| Format | Carbon |
| Physical description | Manuscript |
| Access status | Open |