Chinese Collection No. 75, chemical equip.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Chinese Collection No. 75, chemical equip. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Chinese Collection No. 75, chemical equip. Wellcome Collection. Source: Wellcome Collection.