M0015844: X-ray tube combined with a Villard valve, c.1900
- Date:
 - 1957
 
- Reference:
 - WT/D/1/20/1/141/95
 
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: M0015844: X-ray tube combined with a Villard valve, c.1900. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: M0015844: X-ray tube combined with a Villard valve, c.1900. Source: Wellcome Collection.