I picked up some Ikes from the bank today. 21 were just average clad and one I can't tell. It's a bicentenial without a mint mark but looks like it is silver. I thought all the silver ones would have an "S" mint mark. There is no copper showing on the rim and when I jingle this coin with a clad Ike it sounds different than when I use two clad Ikes.
It also has a drill-hole at the top to make it into a necklace. The inside of the drill hole looks completely silver when I look into it with a lighted loop. I thought the silver Ikes were "sandwich" coins with a copper core.
Could this coin be clad that was silver plated by someone? Please let me know if you have any thoughts on what this may be.