I really don't know if I have found one. Maybe tons of Environmental Damage. Still a toss up for me! Alot of gloss to the coin
Looks right. I own one Edit: I’ll add that I found mine CRH From the edge view I thought, Oh good, a war nickel. Didn’t even know what it was until a few years later, reading CT, before I became a member. Just knew it was different so I saved it. Sure glad I did. Another save for a future numismatist as I’m getting old. No kids. No nephews or nieces interested in Uncle Larry’s hobby. Their mistake
It does look like some of the nickels I've seen before, so I would guess that it is, but sending it to ANACS for authentication may be the only way to verify it.
1959 is the right date. There are some others (58?). But if is darker than normal it very well could be a black beauty. (Improperly annealed.)