Attribution 4.0 International (CC BY 4.0)
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Credit
4 Stethoscopes. A- small, funnel-shaped, lined with brass. B- obatined from Italy. C- obtained from Italy. D- bell shaped, probably 1850s to 1860s. E- probably Stoke's type. Wellcome Collection. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.