Hello, I have some questions about Navy historical information and thought you folks might be the group to contact. I acquired a Winchester 1873 antique rifle made in 1876. It's a nickle plated carbine that has USS 6 stampings on it with anchors. I was told it was used by the US Navy, but have not been able to find much information on it. Do you happen to know what the USS 6 stamping would mean? Or any other historical information about the Navy's use of the model 1873 Winchester? I am a history buff and love this type of historical information.