Caps: New or Old?

[springfield art]

I have an original old tin of Eley's pistol caps; the caps inside have tiny grooves vertically around the sides; are these the real old 19th C. caps, or something someone put there in more modern times? They're Copper. They seem so bright and fresh, but then being in a closed tin might have 'preserved' them. Thanks for any opinion.

 

[64Springer]

I can't imagine a tin of 19th century copper caps being bright and fresh.

 

[Comfortably_Numb]

I have some pretty ancient caps
I have no idea how ancient they are. They still work. My main concern with them is how corrosive they are.

 

[Kansas Jake]

I wouldn’t worry about the corrosion. With black powder you need to clean the piece anyway. I shot old imported CVA caps for years in the late 70s and early 80s with no harm to my old TC Hawken.