Well, its the same with enigma's. all remaining
machines are registered with
their serialnumbers, So selling after stealing becomes very difficult. that
is why a database with serialnumbers connected to people is crucial.
This is wrong. There are a fair amount of Enigmas in collections that
are not on a registry.
Also, serial numbers are easy to forge and deface on vintage military
electronics. When five or six figure values are concerned, a forger
starts to get very good in his craft.
Anyway, registries are not as big of a deterrent as one might think.
Serious thieves, fencers, and unethical buyers generally do not care.
--
Will