Dear Mario ,

Thank you for contacting Mearto with your appraisal inquiry.

The presented object appears to be a French Model 1822 percussion pistol made in 1856. It is stamped by the Mutzig Arsenal and dated on the lockplate.
Comparable objects were recently offered and sold on the international auction market.
This piece is in good condition and no severe damage is visible in the images provided.
A fair market estimation would be between 450 to 800 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards,
Gregory