1855 model arms with a very long barrel appear from 1860. 600 shotguns are produced in .75 caliber. The barrel length of this five shot rifle is 36 inches.
A model 1855 Sidehammer presentation shotgun has just been discovered. It bears an inscription dated 1865 to mark the presentation to its first owner and had never left the family. It is estimated $ 150K, for sale by Rock Island Auction Company in Rock Island IL on December 6, lot 1277.
This gun was richly engraved, including hunting dogs. It comes with its original factory case. It retained over 95% of the brown finish of the barrel.
I invite you to play the video shared by the auction house: