Mirror effect

Anyone know what this is. Has varying dates.

I have one too! Same year sequence as well. I bought it because it’s different and adds a nice touch to my collection shelves! Great find, I love mine because it’s in perfect condition and I’ve never seen anything like it (until today).

Idk that’s why I was asking. Do you think I should bring it into a coin shop?

Is that a proof/mint set?

They are all MS coins.