Polygraphie, et vniuerselle escriture cabalistique
Polygraphia, a 1561 Paris edition of Johannes Trithemius's treatise on cryptography and cipher writing, translated into French by Gabriel de Collange and printed for Jacques Kerver. Its pictures are woodcut wheel diagrams with radiating segments of letters, figures and symbols, plus one decorative initial, offering a designer ready models for circular cipher-table layouts, radial grids and ornate capital letters.
