cryptographn.

1839 J. T. Smith Northmen in New Eng. vi. 317 A great portion of the inscription, however, is composed of cryptographs, like those in the Cave of Paradise.

1845 E. A. Poe Gold-bug in Tales 28 I could not suppose him capable of constructing any of the more abstruse cryptographs.

1879 F. W. Farrar Life & Work St. Paul I. App. iv. 641 Much of the Talmud consists of cryptographs which designedly concealed meanings..from ‘persecutors’ and ‘heretics’.

1901 Jrnl. Hellenic Stud. 21 261 It was surely written rather as a cryptograph than a shorthand, although the symbols are tachygraphic.

1952 Billboard 1 Mar. 12/1 Hummingbird..provides bridges via comments out of the ‘Great Record’, a huge book of Indian cryptographs.

2001 K. Glowczewska tr. R. Kapuściński Shadow of Sun 198 There are no written orders, no ordnance maps, cryptographs, leaflets, proclamations, newspapers, letters.

1856 Chambers's Edinb. Jrnl. 29 Mar. 205/2 Mr Wheatstone's cryptograph will enable them to correspond by cipher-advertisements in the Times to their hearts' content.

1873 Pop. Sci. Monthly Nov. 125/1 The cryptograph consists of a graduated arc of a circle, and an alidade, or index, also graduated and movable over the entire arc.

1889 Daily News 21 Oct. 3/6 The Wier Cryptograph..by means of which a small..type-writer is made to write cryptograms, to be translated mechanically on a similar machine.

1904 National Cycl. Amer. Biogr. XII. 537/1 A cipher code machine called a ‘cryptograph’ or typewriter for secret correspondence, having its type wheel so mounted that the characters printed are constantly changing.

1928 Daily Express 22 May 2/4 A new invention known as the cryptograph, which could automatically code messages and decode them.

2000 R. J. Aldrich Intelligence & War against Japan v. 77 The US Army's reconstruction of the Japanese cryptograph..must constitute one of the most astonishing technical feats of war.