Recently I picked up a two-gun case with only one revolver, a Euroarms 1860 Army with a proof date of 1975. Separately I bought another Euroarms, a .44 caliber 1851 "Navy," and coincidentally it also has a 1975 proof date. So, without intending to I ended up with a "matching" cased pair of Euroarms revolvers.
One thing I noticed is that the finish and fit are not as nice as my Uberti revolvers. With Sourdough's encouragement I decided to see what I could do about two conditions, the surface of the front of the cylinders and the back end of the loading lever on the '51 Navy. I used a diamond kitchen knife sharpener to remove the mill marks and flatten the surfaces then polished them with some 1500 grit emery cloth. I used cold bluing on the cylinder and tried my hand with some Birchwood Casey chemicals for a case hardened appearance on the loading lever. I've uploaded before and after pics. I think for a novice like myself the results are an improvement, and while not perfect, they seem to fit the age and condition of the guns.
