Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Automatic scarifier, by W. H. Hutchison, Sheffield, 19th c. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Automatic scarifier, by W. H. Hutchison, Sheffield, 19th c. Wellcome Collection. Source: Wellcome Collection.