| RefNo | ACS/1/2/4/526 | 
| AltRefNo | 665 | 
| Level | Item | 
| Title | Letter from [Alan Archibald Campbell] Swinton, to The Editor of The Times | 
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer | 
| Date | 11 December 1929 | 
| Description | Referring to an enclosure, informs he has received an opinion from Sir Dugald Clerk, that Baird’s patents are valid for what they accomplish. | 
| Extent | 1p | 
| Format | Typescript | 
| PhysicalDescription | Carbon | 
| AccessStatus | Open | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8285 | Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer | 1863 - 1930 | 
| NA7825 | Clerk; Sir; Dugald (1854 - 1932); mechanical engineer | 1854 - 1932 |