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== == Stamped serial numbers cause deformation of the metal deep below the surface and can be read even when filed off.

Something that coin collectors use to recover worn off markings on coins is a chemical called Nicodate that could be used on nickles. It might be worth a try. A forensic expert might use acid etching or various scans to recover the number, but that kind of service will likely be expensive.

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โˆ™ 2009-09-11 02:36:42
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Q: How can you recover the serial number of a gun if it has worn off?
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