[Steganography] Johannes Trithemius, Steganographia

(...) Nunc vindicata. Conjurationes spirituum (...) concinnatae, deinde solvuntur artificia nova steganographica, autore W.E. Heidel. Nuremberg, apud Joh. Fridericum Rudigerum, 1721, (6),364,(3) pp., title in red and black, in halfleather, boards covered with speckled paper, ribbed back with gilt title, 4to.

Leather on spine worn, old owner's name to title, first half of the book stained, second half tanned. Famous book on cryptography from 1499 (first issued in 1606), here in the second printing of the edition edited and expanded by W.E. Heidel. Thorndike IV, 524. Du Prel 536. Caillet 10856.