Opthalmoscope of a kind introduced by Beale, 1869.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Opthalmoscope of a kind introduced by Beale, 1869. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Opthalmoscope of a kind introduced by Beale, 1869. Wellcome Collection. Source: Wellcome Collection.