This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Vitriolbasil valentine. en Anagrammatical alchemical figure representing Vitriol here taken to stand for Visita interiora terrae rectificando invenies occultum lapidem Visit the interior parts of the earth by rectification you will find the hidden stone This from Basil Valentine's Chymical Wedding Basil Valentine Chymical Wedding