I got this for change today, and something just isn't right about it. The color and the texture of the entire surface is just off. The finish isn't a typical worn coin finish, it feels almost like pot metal, but a lot less rough. That's the best way I can describe it. Also, the color is a little funky for a penny. It's hard to see it in this picture, you'll have to excuse my phone for that, but without the phone it looks like it has a lot of almost brassy and grayish tint to it. Not brown, not copper, just different. Anyone know what could cause this?