[targa911S]

That IS very nice and clearly not what we in the trade refer to as a JABC or just another Belgian clunker. Fred is right most of these were made in Belgium and not in the U.S. However the locks do look like they are Belgian. Possibly the barrels too. Not uncommon to import the hardware and make the gun to ones own specs. Welding the original hammer is your best option. I was understanding that it had a missing a hammer and those are really hard to match. Better to replace them both with a matching set if that were the case. I still would not recommend shooting it. Value? I think it's value is directly related to how much you love it. Hard to price things like this that are really one offs.