I suspect that getting proof from CZ-USA, the current owner of DW, would be problematic. I do not think there are detailed records of which DW revolvers came from the factory with nickel finishes. All I know is that factory nickel DW revolvers are very rare and I don't think DW actually did the nickel finishing. I'm thinking they actually used an outside service for custom finishes.

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VCDL, GOA, NRA