Polybius square

Polybius square

V400/0161 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 55.6MB

Downloadable file size: 519.2KB

Price image Pricing

Please login to use the price calculator


Caption: Polybius square, artwork. This device, used in encryption and telegraphy, was first described by the ancient Greek scholar Polybius in around 200BC. It works by replacing each letter of the Greek alphabet with a pair of grid co-ordinates. For example, beta (B) would become 12. Polybius conceived of this device as a way of transmitting messages optically with a pair of torches. For an artwork of the system in practice, see image V400/0090.

Release details: Model release not available. Property release not available.

Keywords: ancient greece, antiquity, artwork, black-and-white, checkerboard, cipher, classical, co-ordinates, code, coded, communication, communications, coordinates, cryptography, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, cypher, device, diagram, encode, encoded, encrypt, encrypted, encryption technique, greek, greek alphabet, grid, historical, history, history of science, illustration, language, letter, letters, light, message, messages, monochrome, optical, optically, polybius square, secrecy, secret, securing, security, signal, signals, system, technology, telecommunication, telecommunications, telegraphy, text, transmission, transmitting, visual

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.