Thought this too be a eat up zinc penny so had thrown in in my gallon jar with the rest of the junk. Local store needed pennies so I was getting them a jar full when I noticed it. Have no idea when or where I had found it other than in Missouri. Was told it was late 200 AD or early 300AD. Can find one close on the puter that is 267AD but not exactly the same. Pic is a little dark but magnification will bring it out better. OK you experts, Thanks, Jim MO