Need help with id

[Sprglde]

A friends dad passed away and I was gifted some his cool antique guns. I got this one recently and I can't make out writings by the hammer. There's other stamping on the back of the grip. I know it's old and a paper weight now but knowing a little about it would be nice. Thanks.

 

[Sam squanch]

Looks like a military pistol, European. Not sure what country.

 

[Melee]

Take is with a grain of salt as I’m no expert but it looks to me that this could possibly be a French model (AN XIII) originally flintlock converted to percussion, or 1822. Although bolster is different on 1822 and yours has no front sight which would be on 1822.
Logo reads either Mre Imp'ale de st Etienne or Mre Imp’ale de Chatellerault basically an abbreviation for something like “Imperial Manufacture of Chatellerault”or St. Etienne.