London, Wellcome Institute MS. 2449. 6 folios +108 pages. 205x165m. 18th Century [1750] Frydau, Johann Ferdinand von. Anonymous MS on Cabalistic Alchemy. [In German]. [Illustrated with 4 full page symbolic figures in watercolour.] [There is a statement signed 'v. Friedau' in cypher, followed by the letters 'F.R.C.' The name has been deciphered in a pencil not by Julius Kohn.]