Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Oeuvres métallurgiques ... Contenant I. L'art de la fonderie; II. Un traité de la liquation; III. Un traité de la macération des mines; IV. Le traité des trois merveilles / [Johann Christian Orschall]. Public Domain Mark. Source: Wellcome Collection.