STC225712 Futility of the Alchemists, frontispiece of the \'Treatise on Truth and Falsehood about the Philosopher\'s Stone\' by Sincerus Hydrophilus, published 1752 (colour litho) by German School, (18th century) (after); Private Collection; (add.info.: Falscher und Wahrer Lapis Philiosophorum; this copy is a re-issue of \'Der Chymischen und Heutigen Welt, published 1736;); The Stapleton Collection; German, out of copyright.