Re: VMs: Random Text Generation

[Nick Pelling <incoming@xxxxxxxxxxxxxxxxx>]

Hi everyone,

> Another point: the 1440 cipher from Urbino shown by D'Imperio has "4" (--> 
> [null]) and apparently a ligatured "4o" (--> "quo"):-
>
>         http://voynich.no-ip.com/enigma/fig39.pdf
>
> Tristano Sforza's code from 1450 (with its 4/4o pair) seems 
> similar-minded, perhaps to the point of having been created by the same 
> cipher-maker: I'll have to look at these more carefully...

FWIW, the Dukes of Urbino (before the munificent Federico da Montefeltro) 
were:-
Antonio Montefeltro             ????-1404
        Lord of Urbino  1377-1404
Guidantonio Montefeltro 1378-1443
        Lord of Urbino  1404-1443
Oddantonio Montefeltro          1427-1444
        Duke of Urbino  1443-1444

D'Imperio's figure 39 refers to the 1440 Urbino code appearing in Luigi 
Sacco "Manuale di Crittografia", Roma, 1947.

There's also a 1977 English translation of this (published as "Manual of 
cryptography"), put out by Aegean Park Press. Hmmm: now that sounds 
familiar... :-) Trinity College in Dublin has a copy, so I might eventually 
get to see it via an interlibrary loan (but the odds are fairly slim). -/

May I ask if anyone has a copy (or has easy access to a copy)? If so, can I 
please ask what manuscript Sacco is referring to, when he describes the 
Urbino's cipher as being one of 72 others? There may be another facsimile 
of them I can get access to more easily.

Thanks, .....Nick Pelling.....

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