Proof Mark (V inside Circle) Assistance!

FIREARM: Swiss 1842 Percussion Musket

MARK: V in Circle

https://www.milsurps.com/images/impo...842_0001-1.jpg

LOCATION: Top of Barrel and left side of stock (on wood).

NOTE: Found 6 other references (i.e., 1895 Spanish Mauser, etc.) to "V" inside of circle - all asking what it is and getting no answer.

On a Swiss firearm, a possible explanation is that it is a mark of the canton of Vaud. (the 3rd largest canton).

Quote:

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Originally Posted by S&WOwner

NOTE: Found 6 other references (i.e., 1895 Spanish Mauser, etc.) to "V" inside of circle - all asking what it is and getting no answer.

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How about posting these references? They might provide a clue.