I just picked up this 1842 Springfield with bayonet. It was made in 1846 according to the markings. Not having any experience with these truly historic weapons, I do not want to do something stupid. So I am seeking advice from those of you knowledgeable about these weapons. I first want to preserve it without damaging it. It has a very spotted patina on the metal and there are no real dings on the stock. Based on comparing it to pictures from the internet, it is unmodified (still .69 cal smooth bore) with baronet. Hoping for advice on steps to take. Thanks in advance for your help.