But as American Bullion noted, you can also find some pricey versions minted during World War II (1942-45) because these were made with additional silver and manganese to save nickel for the war ...

While the vast majority of extremely valuable nickels are quite a bit older than most, some more recent examples can be found in circulation. Watch out for the aforementioned silver war nickels ...

now one part nickel and three parts copper, will be coined half of silver, half of copper. Net saving on a year’s new coinage: 434 tons of nickel, 434 tons of copper. (The Senate Judiciary ...