The pistol I own has a frame cast into the action for the grips, instead of just an extension on the barrel, and trigger guard, to mount a wood grip. My gun is quite small, in actual size, and caliber. The black walnut grips, which still retain some finish, are held on with a plain wood screw, that goes clear through both grips, and is filed smooth on the pointed end. This gun is smooth bored in .30 cal. and is fully functional. I have seen one that was identical to mine in a little larger caliber, that had "Bottoms" stamped on the octagon section of its OTR barrel, but mine shows no signs of having ever been signed. There is no indication that this gun ever had any sights.
Hungry Horse