On Tue, 10 Sep 2024, Paul Koning via cctalk wrote:
Any special
provenance? (Hitler's personal Enigma?, BillG's' Altair?,
Steve's Apple?)
Nope. But the Enigma is a four-rotor Navy model, not the more common
3-rotor one. I didn't know that the Navy had those; I had heard of
4-rotor machines only as something the Gestapo used.
There is one Navy model on display at Bletchley Park FWIW, along with the
story behind the expansion.
Maciej