Swiss (or Belgium) Model 1842 Percussion Infantry Musket?

[SWOwner]

My apologies if I posted this inappropriately. If so - please feel free to remove.

Well, just picked up a neat musket (always wanted one). I was told it was used by a Minnesota soldier in the Civil War. I was also told it bounced between Belgium and Switzerland and ended up used during the Civil War...anyway - just going through the first phase of ID'ng the markings and need a little help.

Now, I did find a "A Swiss Model 1842 Percussion Infantry Musket" that had the "Crown over BF" and "V inside of a Circle" markings AND M6328M on its butt while my new puppy has M5xxxM on the butt. That rifle was sold at auction in 2006.

I THINK...

1. Their are Belgian Gun Maker markings (Crown over BF) all over the rifle...
2. Their are the standard Belgian (E over LG star) Proof House Markings...
3. "Shield" looks like emblem of Canton Neuchâtel (Western Switzerland)...
4. Haven't a clue what the "1091" might be is the Beuret Frères assembly number...
5. The "L" mark might be Swiss Inspector Ledermann...
6. The "N" mark might be the Swiss Manufacture Mark (sometimes represented by just a N)...

NO CLUE...

6. Their are a few "V inside of a Circle" - no clue...
7. Haven't a clue what the "CGP" - no clue...
8. Haven't a clue on the "895" stamped on both the metal and wood...
9. Upside down "shield" - no clue...

I have included pictures to help with the ID process.

Any help would be greatly appreciated.

Thanks!

 

[SWOwner]

FIREARM: Swiss 1842 Percussion Musket

MARK: V in Circle

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.