> 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