Getting back into shooting black powder after about a 20 year hiatus and picked up a couple of Pietta brassers, neither of which is historically accurate (1858 Remington and 1851 Colt Sheriffs model, both .44), just because I like their looks and don't plan to shoot them a lot. I still have a cased 1858 steel Remington I bought new, I think in the 1980s. Now wondering when it was made and what the quality of these pistols was in the 1980s. Serial number is 5013 on base of the grip and under the loading lever. Also an "R" with radiating lines under the loading lever. "EMF Co. Cal." on the top of the barrel and "Made in Italy" left side of the barrel. Two proof marks and "Black Powder Only" on right side of barrel. Three proof marks on right side of frame and two on the cylinder. Is that enough information to date it, or is it even possible to date these revolvers?