Winchester P17dot in serial?

[drgbike]

I HAVE P17 Winchester, barrel date 4-18, with a punch mark preceding the serial 2463**. Any ideas, defective, parade, hardness test ???? Thanks

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[browningautorifle]

Proof after firing?

[oldfoneguy]

Pictures?

[pickax]

Proof after firing?

Maybe a second firing proof after rebuild. First would be an eagles head in grip.
Pictures?

[Promo]

I know this from testing the hardness .. so probably something during production. This can also be found with M1903 rifles.