Pencil sketches of local weapons, "assagai" (assegai) and arrow heads, by Lionel Decle during travels through central and east Africa.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Pencil sketches of local weapons, "assagai" (assegai) and arrow heads, by Lionel Decle during travels through central and east Africa. Wellcome Collection. Source: Wellcome Collection.