diagrams of alchemical Processes from Das Buch mit Sieben Siegeln, Anonymous, ca. 1700. From Manly P Hall's Collection of Alchemical Manuscripts, Box 4.MS 19.Vol 2
diagrams of alchemical Processes from Das Buch mit Sieben Siegeln, Anonymous, ca. 1700. From Manly P Hall's Collection of Alchemical Manuscripts, Box 4.MS 19.Vol 2
