| RefNo | ACS/1/2/4/386 | 
| AltRefNo | 521 | 
| Level | Item | 
| Title | Letter from [Alan Archibald Campbell] Swinton, to Colonel. Sir Henry [George Lyons] FRS | 
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer | 
| Date | 1 July 1929 | 
| Description | Unsure whether there is anything new in principle in Baird's television apparatus over what had been published by Nipkow in his patent of 1884, enclosing a copy of his letter to Nature in which he deals with the subject, corroborated by A. Dauvillier [enclosures not present]. | 
| 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 | 
| NA6939 | Lyons; Sir; Henry George (1864 - 1944); geologist and museum director | 1864 - 1944 |