overload proved
Hello Gents,
Looking at the photo you will see the overload proved stamp. Can some one can tell me the how the barrels that were overproved were conctructed differently than a set that was not overproved, and to what psi they would have been tested to? Does anyone know how common the overload barrel sets were?.Also what is the mark J.G. in the oval on the left of the bbl. flat.
Thank you ,
Fritz
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