Neolithic methods of trephining by T. Wilson Parry, from the slide collection of T. Wilson Parry, No. 3977

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Neolithic methods of trephining by T. Wilson Parry, from the slide collection of T. Wilson Parry, No. 3977. Wellcome Collection. Source: Wellcome Collection.