Specification of Julius Jeffreys : respirators.
- Jeffreys, Julius, 1800-1877.
- Date:
- 1856
Licence: Public Domain Mark
Credit: Specification of Julius Jeffreys : respirators. Source: Wellcome Collection.
1/10
Licence: Public Domain Mark
Credit: Specification of Julius Jeffreys : respirators. Source: Wellcome Collection.