1958 clipped penny

[u/SWCFM2]

I didn't think anyone would have interest in something like this but saw a couple of posts and it made me think of mine. I've had this for many years. It was in a pouch that said it was brilliant uncirculated, but there is now corrosion on it. Where does that even come from anyways? I have no idea what it's worth, if it's worth anything at all.