Ring help.

Is this a ring and is it old?  

Looks like a homemade ring made from a piece of silverware.  Is it silver?

I don't think its silver. 

It reminds me of and resembles a thumb pick, for banjo.  Some were made of brass.

Im guessing toe ring, is that a marking inside?

No inside markings. 
It is in the exact shape as the thumb pick for a banjo. 

Exact shape of a spoon ring too. Monty

it reminds me of a horseshoe nail ring, just flattened a little...

Monty got it  It's a spoon ring.

Ive never heard of a spoon ring. How old do you think it is?

Hello,
 I found a ring with the same color crud on it. I took 1500 gr sand papper and cleaned it off. it may have a mark inside of it. might be a chief head. look up the makers mark. older rings have it. You can use a dremel tool with a small brass brush or stainless on it it will come up great and it will not scrash. keep it on low speed. Eastcoast metal detecting