Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Kollmann-type urethral dilator, London, England, 1901-1915. Science Museum, London. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Kollmann-type urethral dilator, London, England, 1901-1915. Science Museum, London. Source: Wellcome Collection.