facsimilium
Ancient manuscripts and rare books
Showing posts with label
Juan Fernandez de Velasco
.
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Showing posts with label
Juan Fernandez de Velasco
.
Show all posts
Sunday, July 1, 2012
Spanish cryptography, 16th Century
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Original title for this codex is "Discursos de la cifra", and is basicly a complete treatise on cryptography, including technic...
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