I know nyc laws are different than the rest of nys, when i left the pd i was required to have a nys pistol permit to carry a handgun,,im not even sure where the heck you would take a firearm to get x-rayed, i guess more research is needed on my end,
Ed Cornett (opoefc) is a retired LEO and retired Gunsmith to the movie stars of Hollywood going back to the 1950s. Ed is precisely on point, if you really want to know. To me, the features, as shown, disqualify that it could have possibly been an original SN: 25 which I think is what you're trying to verify. If you need proof, one way or the other, this is the way to go. The other way is to chemically strip the finish, which you wouldn't want to do unless absolutely necessary.
I had thought to suggest the same type test (radiography or x-ray) but didn't think it was a solution you'd consider although the results will be conclusive and irrefutable.
A metallurgist will be able to answer that question of who could do it if he cannot. I work with a metallurgy lab in Davie, Florida. He tests automotive, aircraft and marine components for causation in component failure cases.
Naturally, I research auto components for causation on metal component failure cases but will work just as well on firearms. In Neal & Jinks (IIRC) there were a slew of "radiograph" images (x-rays) of S&Ws. Check for a accredited metallurgist near you.
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