5 Stethoscopes. A- very small, B and C- obtained from Italy. D- bell shaped. E- not unlike a french type.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: 5 Stethoscopes. A- very small, B and C- obtained from Italy. D- bell shaped. E- not unlike a french type. Wellcome Collection. Source: Wellcome Collection.