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Joined: Nov 2005
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CJF Offline OP
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Can anyone point me towards a guide to proof marks on London-proofed gauge or bore rifles? I'm confused by the marks on a steel barreled 20 gauge that's proofed on the barrels and not the flats with London proofs.

Between the viewing proof and the definitive proof, there's a "39" marked on the barrel. No other markings for gauge or caliber.

Any resources you can share or an interpretation?

Thanks,
CJF

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Last edited by skeettx; 09/23/18 07:46 PM.

USAF RET 1971-95 [Linked Image from jpgbox.com]
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Thank you Mike. Layout is exactly like first period (thru 1868), but I wasn't aware that Jones under-lever was that old, but I just saw it goes back to 1859, so it is feasible.


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