Lyman imports were made by Uberti and ASP. The 1858 Remingtons were made my Uberti. More info on Lymans
. You can verify this by the Uberti stamp on the right side of the barrel which is a u
surrounded by an octogon outline.
The year stamp is on the irght side of the revolver just above the top of the trigger guard. for quick reference, here is a chart of the year codes
I own two New Armies and am well pleased with them. The Lyman 58s are excellent quality, old fashoined Uberti quality with one exception:
Does yours have a pawl ring around the cylinder? Every one of the Lyman Remmies I have ever seen that had been fired or cycled did. Easy to fix, but once the damage is done, it's done. It will be there until you refinish the cylinder. My thing is the plain steel look so it don't really matter. I have removed the blue on one and plan to do the other. After removing the blue the pawl ring was still there, the bolt spring had to be worked on a bit
to fix the problem. After sanding the pawl sanding off after fixing the problem, the plain steel revolver looks pretty sweet.