There are stock duplicators and Stock Duplicators the difference is the amount of work required to finish the stock after having it duplicated.
I have seen stocks come off duplicators that looked like corcobs and others that could've been oiled and finished without any further work.
Then there are masters that know how to operate one and others that can produce something from one.
Two of the best duplicators made were the Hoenig and Rodman and the Don Allen, the one Friwi refers to above was probably a Don Allen since he came from South Dakota, Don Allen was one of the brothers that started Dakota arms.
Don Allen
https://www.gunsinternational.com/gu...n_id=100799907
https://geoffsleegunstocks.wordpress.com/pantograph/
Good luck finding what you are looking for.
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