Monaural stethoscope designed by Traube.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Monaural stethoscope designed by Traube. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Monaural stethoscope designed by Traube. Wellcome Collection. Source: Wellcome Collection.