Photograph of R. C. B. Wall; 1926
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Photograph of R. C. B. Wall; 1926. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Photograph of R. C. B. Wall; 1926. Wellcome Collection. Source: Wellcome Collection.