According to my proof book it has a "Voluntary provisional proof with a proof pressure of 14,223psi."

The other two side by side marks are described as "For a finished gun that underwent re-enforced proof." Later it gives a pressure for a 16 gauge with such proofs as 14,934psi.

Overall it's a bit confusing, I'm certain others know far more, especially about Paris proof marks.

Steve

Last edited by Rockdoc; 01/30/16 10:02 AM.
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