Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Urethroscope, Berlin, Germany, 1901-1920. Science Museum, London. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Urethroscope, Berlin, Germany, 1901-1920. Science Museum, London. Source: Wellcome Collection.