Inside Out Library · ExploreDe fvrtivis literarvm notis, vulgo, De ziferis libri IIII (1563)Porta, Giambattista della, approximately 1535-1615 · Neapoli : Apud Ioa. Mariam Scotum · leaf 111L 2Ciphers · Cryptography · Signs and symbolsInternet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.More pictures from De fvrtivis literarvm notis, vulgo, De ziferis libri IIIIMore like this
![An illustration from Museum regium, seu, Catalogus rerum tam naturalium, quam artificialium, quae in basilica bibliothecae augustissimi Daniae Norvegiaeq[ue] monarchae Christiani Quinti, Hafniae asservantur (1696)](https://img.insideoutlibrary.com/img/200/ia-museumregiumseuc00jaco-290-115.webp)
