Pleistocene deposits of the Thames valley. Iver, Bucks. View showing sections and early mechanical working in Mansion Lane pit. Iver Terrace.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Pleistocene deposits of the Thames valley. Iver, Bucks. View showing sections and early mechanical working in Mansion Lane pit. Iver Terrace. Wellcome Collection. Source: Wellcome Collection.