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Old 12-06-2021, 12:43 PM
2152hq 2152hq is offline
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Yes you are correct.
The 1925 Law required the Definitive Proof Mark, View and Nitro Proof on the bbl....Crown/ BP,,BV,,NP
All each within a circle on non-Brit made forearms.

The 1955 Law changed that to the Nitro proof mark now the Crown/BNP mark only along with the cartridge info/length/pressure shown.
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