Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Bericht an die Herren Liebhabere Optischer..., by Cuno. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Bericht an die Herren Liebhabere Optischer..., by Cuno. Wellcome Collection. Source: Wellcome Collection.