I updated “Ciphers during the Reign of Emperor Charles V”.
Additional specimens I found in the Spanish archives necessitated the change in my appellations:
(old) the Imperial Cipher of 1547-1553
(new) the Imperial Cipher of 1544-1554
(old) the Imperial Cipher of 1548
(new) the Doria-Figueroa-Philip Cipher (1548)
As for the latter, the new specimens of this period seem to show this was not used widely. So I demoted the name.
When there are so many different ciphers, it is difficult to think of
names to unambiguously specify particular ciphers. Ideally, I would
like a name such as Leyva’s Cipher of 1536 if the creator’s name and
date of creation were known. Alternatively, a name like Charles V-Prince
Philip Cipher (1543-1544) is fine if the users and period of use were
known and if information is not sufficient, the name is inevitably a
provisional one. If a reasonably exhaustive catalogue can be made,
simply the catalogue number may suffice.
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