64 cent different color obverse

Can someone please tell me why there are two different colors on this 64 cent. I do know it's not from weathering or exposure because it's been sitting in a jar with about 5000 other cents for the past 50 years. It weighs 3.10 View attachment 616007 View attachment 616005 View attachment 616003

 

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Both sides of the coin look copper to me -
if you mean one side is a different shade
of copper, that's just slight toning on one
side - it's not an error coin of any type.

 

Ok could u tell me y it would only tone on one side.

 

Yes, it would tone on one side only
if the coin was stored flat at some point
in it's life - could have been before you
put it in the jar.

This is not unusual at all....very common.