What if he dies and it gets sent to his executor? Could the executor sell it in the US? Can it be "willed" to a museum. Can a "movie armourer" use it whole, or in parts? Do all the guns in our armed forces have up to date firearms registration certificates or are they exempt?
That firearm was 100% legal several times in its history. There are identical ones still legal, albeit prohibited. I would hate to think the welding machine is the only alternative?
It lost it's lawful status after the specified grandfathering date as previously discussed. This firearm presently has no lawful status for possession by any individual. The state may take possesion of it for disposal.
An executor has only those lawful rights previously enjoyed by the the estate they represent. If it was an un-grandfathered prohib before the owner died, it remains so afterwards and the executor is under the same obligation to lawfully dispose of it.
Firearms act S.19
19. (1) An individual who holds a licence authorizing the individual to possess prohibited firearms or restricted firearms may be authorized to transport a particular prohibited firearm or restricted firearm between two or more specified places for any good and sufficient reason, including, without restricting the generality of the foregoing,
(a) for use in target practice, or a target shooting competition, under specified conditions or under the auspices of a shooting club or shooting range that is approved under section 29;
(a.1) to provide instructions in the use of firearms as part of a restricted firearms safety course that is approved by the federal Minister; or
(b) if the individual
(i) changes residence,
(ii) wishes to transport the firearm to a peace officer, firearms officer or chief firearms officer for registration or disposal in accordance with this Act or Part III of the Criminal Code,
(iii) wishes to transport the firearm for repair, storage, sale, exportation or appraisal, or
(iv) wishes to transport the firearm to a gun show.
19 (b) (ii) seems to be the only lawful action in this case.