Light emitted by Röntgen Ray Tubes: the letters "X" and "D". Photoprint from radiograph, by James Wimshurst, 1898.
- Wimshurst, James, 1832-1903.
- Date:
- 1898
- Reference:
- 579910i
Licence: Public Domain Mark
Credit: Light emitted by Röntgen Ray Tubes: the letters "X" and "D". Photoprint from radiograph, by James Wimshurst, 1898. Wellcome Collection. Source: Wellcome Collection.