Coin identification

[favabeans]

Hey folks, I posted this in the wrong forum I think. Need help identifying what we think is a coin found in our front yard in Saint Augustine. Note that it is magnetic.

http://www.treasurenet.com/forums/spanish-cobs/419779-st-augustine-coin.html

Thank you!

 

[cudamark]

Like the other replys to this.....looks like a slug to me too.