M0015837: Two examples of the modified version of the focus tube introduced by Sir Herbert Jackson
- Date:
- 1957
- Reference:
- WT/D/1/20/1/141/88
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: M0015837: Two examples of the modified version of the focus tube introduced by Sir Herbert Jackson. Source: Wellcome Collection.
2/2
