Tri-Dent dental station, c. 1920.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Tri-Dent dental station, c. 1920. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Tri-Dent dental station, c. 1920. Wellcome Collection. Source: Wellcome Collection.