Respirator designed by Rudolph Eisenmenger, of Hungary.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Respirator designed by Rudolph Eisenmenger, of Hungary. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Respirator designed by Rudolph Eisenmenger, of Hungary. Wellcome Collection. Source: Wellcome Collection.