@Wendifur Google would have given you these same results that I just found in 5 seconds: http://www.coinflation.com/coins/1942-1945-Silver-War-Nickel-Value.html http://cointrackers.com/coins/1071/1943-s-jefferson-nickel/
I think he is referring to the gold tone that the coin has acquired. This happens sometimes on silver coins and is natural and not really uncommon.
No, but it might well be plated and the plating would have increased the weight. Are your scales correct?
Sorry for the blurry photo. I am trying to get a clear picture that gives it justice. I will also send pic of it on my scale. One with the weight of the 1942 and one with the 1943. Thank you
Plating is usually very thin and very light and doesn't add that much weight. I agree on the plating. But it still could be a thickly rolled planchet.
Weigh some other war nickels and see if they’re around 5.7 as well. As others have stated it’s probably plated. If the scale is correct...
All nickels are 5.0 war or regular. Shield nickels 5.0 V nickels 5.0 Buffalo nickels 5.0 Jeffersons 5.0 If this nickel is 5.7 it could be fake, or a thick planchet. Or the scale.