[Fordzilla]

Mike, Although the guys mean well, they are obviously not antique gun guys. Yes, It is US Military. Yes it is a US arsenal 50-70 conversion. Lack of cartouche on the stock is common. The stock was replaced at time of conversion & barrel relining. Yes, it needs to be cleaned. Yes, you can clean the bore with a bore brush. Use a 50 caliber brush & remove all the lead & grime you can. After that I can tell you a trick used by the pros to clean the remainder. Easiest to describe over the phone. Yes, the active rust on all metal should be removed. Don't polish it, just clean off the rust, leaving the metal patina intact. Bronze wool should be used with a light oil. Automatic Tranny fluid works great.