I read that name somewhere in a list of barrel makers who made barrels along the river in PA that were sold as pre made barrels to builders through hardware stores like locks and the other hardware. I think I was researching Pennabacker barrels when I read across this name.
The marking being positioned out of sight tells me the actual builder picked out the best part and positioned it in the stock as the visible side. The guard looks like it was also perhaps ordered as a component and installed without further styling or file shaping.
Nice old rig some old timer made and used.