This is a 7 shot 22 rimfire and was probably made by Hopkins & Allen because of the Dog head grips. It is marked The Duke and has patent dates Mar 28. 71 May 27. 79. This has a 3 3/8” barrel and is engraved. The serial number is 8301. This retains 80% original nickel finish. The mechanical function is very good and the bore but does have a small amount of corrosion. It is lightly engraved and the grips are very good without any chips or cracks.