Of course, just to clarify the law here. A person can make, own and use a gun that has never been through a Proof House if he or she wishes. It just becomes an offence to sell, offer for sale or export an un-proved gun. It is surprising how many turn up that were imported by U.S. Service personnel when there were a lot of air bass during the war and after. They sold them on to locals rather than take them back. I acquired a Winchester model 12 dated 1939 and an L.C.Smith double also dated 1939 in this way after they had passed through a few hands. Technically the seller committed an offence but I sent them to the Proof House before parting with them although I used them for a while without breaking any laws. I should think there are quite a few of these grey imports still about. Lagopus.....