| Reference number | NLB/18/791 |
| Alternative reference number | NLB/18 p452 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, to R Threlfall, 259 Hagley Road, Birmingham |
| Date | 13 May 1899 |
| Description | Relates to the finding of a date for a demonstration of the Quartz Gravity Balance by Threlfall. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Typescript |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA6235 | Threlfall; Sir; Richard (1861 - 1932); physicist and chemical engineer | 1861 - 1932 |