So this Saturday, I came across a Zimmerman defarbed m1861 Springfield for $900. It's in excellent condition, you might think it's new if not for the defarb work, and a single noticeable scratch on the barrel, near the tang screw. The bore was absolutely IMMACULATE(although dirty now, thanks to me firing some blanks earlier lol) I figured, it's $100 less than a new Armi Sport, and it has the defarb work, a bayonet that fits, and a sling, so it's a good deal. I bought it. However neither the dealer, nor I have any idea if it's an AS or Pedersoli, since the stamp was removed. Is there any way to tell or find this information out?