I have the book "The Brown Bess" by Erik Goldstein and Stuart Mowbray. According to the book this Brown Bess is the 1793 Pattern or India Pattern Type 1. They say the markings on the tang of the butt tang signify the Regiment. In this Case I think the N stands for Regiment ??? Company C 46th musket. Can anyone tell me if I am correct? Or, what regiment would be identified by the letter N? Or where I research for the Regiment?