Can anybody identify this pan? It appears to be painted silver.

Here’s the front.
https://i.imgur.com/c4nsfFB.jpg

Here’s the front.
https://i.imgur.com/c4nsfFB.jpg
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Thanks for the info. My rationale for thinking it's painted is the striations on the inside walls appear to be brush strokes.
Any idea what the "MI" or "M1" is? It kind of looks like it was welded on (poorly).
If I were to clean it up, would I season it as normal right over the plating? or just the areas that the plating has come off?