Articles liés à Monograms and Ciphers

Monograms and Ciphers - Couverture souple

Turbayne, A.A.

 
9780486221823: Monograms and Ciphers

Synopsis

Recueil pour Livres publié sous la référence DOV221822 par Dover Publications.

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Présentation de l'éditeur

Monograms, Ciphers, Trade-M arks, and other letter devices. I have given the work much careful thought in order to present the most useful material, to give that material on a good workable scale, and in such a way that any design can be quicklv found. By the arrangement of the designs the plates form their own index. On Plate ii will be found combinations of AA, AB, AC ;on Plate in combinations of AC, AD ;on Plate i, AM, AM, AG, etc. A device of MB would be looked for under the letter of the alphabet first in order, B; it will thus be found in the BM combinations on Plate xvi. Now the letters AA have only one reading; two different letters, AB, can be read in two ways ;while AAB can be read in three ways; and ABC, or any three different letters, can be placed to read in six ways. A complete series of designs, A A, AB, BA, AC, CA, to ZZ, would run to 676 devices; add to this a series with a repeated letter, which would be the next in order, giving one reading only, AAB, BBA, etc., of which there are 650, and we get 1326 combinations.
(Typographical errors above are due to OCR software and don't occur in the book.)

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