James, R.G.G.: agents pamphlet.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: James, R.G.G.: agents pamphlet. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: James, R.G.G.: agents pamphlet. Wellcome Collection. Source: Wellcome Collection.