| RefNo | ACS/1/2/4/384 | 
| AltRefNo | 517 | 
| Level | Item | 
| Title | Letter from [Alan Archibald Campbell] Swinton, to Sir Ambrose Fleming FRS | 
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer | 
| Date | 1 July 1929 | 
| Description | Draws attention to a letter on Television Invention he published in Nature on 8 June in which he pointed out that, on the authority of Doctor A. Dauvillier, the principle of Baird's transmitter was actually patented by Nipkow, a German, in 1884, before Baird was born. Encloses a copy for Fleming to verify the accuracy of the facts, along with a letter from Dauvillier, confirming Nipkow’s patent [enclosures not present]. Enquires if Fleming is aware of these facts. | 
| Extent | 2p | 
| Format | Typescript | 
| PhysicalDescription | Carbon | 
| AccessStatus | Open | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA7145 | Fleming; Sir; John Ambrose (1849 - 1945); electrical engineer and university teacher | 1849 - 1945 | 
| NA8285 | Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer | 1863 - 1930 |