Dear George,

Thank you for contacting Mearto with your appraisal inquiry.
The presented object appears to be a double barrel shotgun with a percussion lock. The gun barrel is hallmarked by the Belgium company Drisket & Waroux in 1876.
This piece is in good condition and there are no serious damages visible.
An estimation would be between 300 to 600 USD.
This estimation is based on actual recent past recorded auction sales of comparables. Retail "asking prices" can be higher and vary.

With kind regards,
Georg