Dear David, Thank you for contacting Mearto with your appraisal inquiry. My sincere apologies for the delay with the appraisal. The presented object appears to be a US Army percussion lock rifle with measurements of 53 inches in length. The lock is stamped with "U.S." and by a producer. Sadly the producer stamps HILA. is not identifiable. Comparable objects were recently offered and sold on the international auction market. This piece is in bad to medium condition and there is no serious damage visible in the images provided. A fair market estimation would be between 80 to 180 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, George