Hi all. I am brand new to the forum, and I am brand new to BP hunting. I have some experience with Rev. War era muskets from 5 years of doing living history reenacting as a kid. My best guess concerning this rifle is that it is a kit gun from the 1960s or 1970s. The barrel is stamped "SPAIN" on the left side directly opposite of the nipple. Every part of the gun is stamped "46." Any information would be greatly appreciated!