| RefNo | MS/928/2/90 |
| Level | Item |
| Title | Letter from Charles Édouard Guillaume, Sevres, to Charles Vernon Boys |
| Creator | Guillaume; Charles Édouard (1861-1938); Swiss physicist |
| Recipient | Boys; Sir Charles Vernon (1855-1944); British physicist and inventor |
| Date | 23 October 1902 |
| Language | French |
| Extent | 4p. |
| Format | Typescript |
| PhysicalDescription | On paper |
| AccessStatus | Open |