Attribution 4.0 International (CC BY 4.0)
You can use this work for any purpose, including commercial uses, without restriction under copyright law. You should also provide attribution to the original work, source and licence. Read more about this licence.
Credit
The head and a shoulders of a man wearing his hair tied in a bunch on the forehead and a stiff straight moustache. Engraving by P. Galle. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.