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.
Creative Commons Attribution (CC BY 4.0) terms and conditions https://creativecommons.org/licenses/by/4.0
William Allen, portrayed as an alchemist with several furnaces, the one which he stokes is labelled "Matter o'money". Coloured etching by T. Jones, 1827.
Credit: Wellcome Collection.