I don't have a clue about commercial guns, but since we are talking the year 1920, and it is post-WW1, and post-Versailles Treaty, didn't DWM use stockpiled military surplus parts in the production of commercial guns until they were gone? That would explain the Navy breechblock, and seems like it would make sense to me... But I can't explain a 5" barrel on an issued "police" gun...that is serial numbered to the gun. If it were a cut down Navy barrel there wouldn't be enough steel to create the muzzle band and front sight base, and wouldn't it have a Crown M instead of a Crown N? Just a strange piece. I noticed that the toggle axle pin also appears to be the larger NAVY size...
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regards, -John S
"...We hold these truths to be self-evident that ALL men are created EQUAL and are endowed by their Creator with certain UNALIENABLE rights, and among these are life, LIBERTY, and the pursuit of happiness..."
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