5 stethoscopes. A-similar to Truabe's, cf. Krohne & Sesemann, 1879, p.108, no.20. B- Fergusson or Stoke's type. C- similar to Traube's. D- probably French, similar to Traube's.

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5 stethoscopes. A-similar to Truabe's, cf. Krohne & Sesemann, 1879, p.108, no.20. B- Fergusson or Stoke's type. C- similar to Traube's. D- probably French, similar to Traube's. Wellcome Collection. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.