Dentistry ephemera : Swanson material. Box 7.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Dentistry ephemera : Swanson material. Box 7. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Dentistry ephemera : Swanson material. Box 7. Wellcome Collection. Source: Wellcome Collection.