| RefNo | ACS/1/1/256 | 
| Level | Item | 
| Title | Letter from [Henry Reginald Arnulph] Mallock, 6 Cresswell Gardens, S. W., to [Alan Archibald Campbell] Swinton | 
| Creator | Mallock; Henry Reginald Arnulph (1851 - 1933); scientific instrument designer and experimentalist | 
| Date | 12 February 1912 | 
| Description | Accepts Swinton's dining invitation and apologises for replying with a delay. | 
| Extent | 1p | 
| Format | Manuscript | 
| PhysicalDescription | Ink on paper | 
| AccessStatus | Open | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA1356 | Mallock; Henry Reginald Arnulph (1851 - 1933); scientific instrument designer and experimentalist | 1851 - 1933 | 
| NA8285 | Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer | 1863 - 1930 |