A40781
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Cryptomenysis patefacta, or, The art of secret information disclosed without a key containing, plain and demonstrative rules, for decyphering all manner of secret writing with exact methods, for resolving secret intimations by signs or gestures, or in speech : as also an inquiry into the secret ways of conveying written messages, and the several mysterious proposals for secret information, mentioned by Trithemius, &c. / by J. F.
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J. F. (John Falconer)
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1685
(1685)
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Wing F296; ESTC R6319
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86,972
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206
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