Small world, I owned the .360 Alex Henry that went to SKB that was sold to Steve Nelson. Fully engraved double rifle made for the Maharaj Rana of Dholpur. I bought it from Tom Ondros who told me his x-wife threw the locks away when he was hunting out of the country. I own an Alex Henry .360 double rifle bar lock action in beautiful condition. I tried to make copies of those locks and finally gave up. I am no machinist and the task was too hard. I talked to an English gunsmith that would do the work, but at that time it was quoted as over $12,000.00 and up to 2 years wait. Those locks would have to be fully engraved to match the action. SKB is right, the locks were hand fitted to the actions and my good .360 locks would not fit in the one missing the locks. I might be able to find the molds my brother made for casting the internal lock parts and individual pictures of each piece. Unless the work can be done by yourself, its a loosing proposition. Good luck!