There is a great looking black powder gun on the cover of the NRA store spring catalog. I have trouble distinguishing an 1860 from an 1861 when I can't see the bore, is there another way to tell them apart? The cylinder is strange, I am guessing a conversion. The grips are beautiful. I am new at this game but I think it is an 1860 conversion with ivory grips. I am hoping to score at least a 1 out of 3 on this question. Also, what is at the top of the cylinder forward of the hammer? I will be ordering the t-shirt that is under it.