I've blogged about the ciphers collected by Tranchedino. They make liberal use of pretty much every common Latin and Greek character and abbreviation symbol, in addition to astrological and mathematical symbols:
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This link explains how basic Latin shapes are altered slightly with an extra tick mark (in a very orderly way) to create new characters:
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The diplomatic ciphers collected by Tranchedino were substitution ciphers that required many characters (sometimes as many as 200 different glyphs per cipher set) because they were one-to-many ciphers (several glyphs could stand for the same character) that also included nulls plus a glossary of symbols for common words.
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This link explains how basic Latin shapes are altered slightly with an extra tick mark (in a very orderly way) to create new characters:
You are not allowed to view links. Register or Login to view.
The diplomatic ciphers collected by Tranchedino were substitution ciphers that required many characters (sometimes as many as 200 different glyphs per cipher set) because they were one-to-many ciphers (several glyphs could stand for the same character) that also included nulls plus a glossary of symbols for common words.
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