Jet bead, heart forms, St. James shell.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Jet bead, heart forms, St. James shell. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Jet bead, heart forms, St. James shell. Wellcome Collection. Source: Wellcome Collection.