Possible Jefferson Dollar coin error, wrong planchet?

[cdickrun64]

I will post pics later, but i picked up a jeff dollar coin at lunch that is on white metal. Hopefully not just a plating job. Has anyone heard of anything like this showing up?

 

[CoinFetcher]

Nope - Best Bet to get it on a scale

 

[cdickrun64]

Here is a pic.....coin weighs 7.9g

 

[omga747]

Almost certainly a plating job, but still curious. It should be 8.1g, so it's probably within uncertainty. Also, do I see hints of the golden color around the "EFFE" in "JEFFERSON"?

 

[barneyb71]

I found one of those gold plated half dollars with the gold completely gone. Made the coin very shinny. I know it was plated because it has the 1960 / 1980 stamps on it. I kept it, it's cool looking.