I have a .38 handed down from my Dad that I would like to know more about. It has no visible model name or number but I believe it may have been a British Naval Officers side arm. It has the letters BNP stamped on the cylinder, 5 in. barrel and frame as well. It also has a lanyard ring on the grip base. The grips have been replaced by my Dad with home made deer antler material.Serial # is7477xx. Any info would be appreciated. Thanx all ................Boog