That looks like some impressive strike doubling to me, but not a doubled die, so not the variety you're looking for. I don't see notching on the E...
@SSG_Gonzo posted a raw proof 1942-P Jefferson (silver). @RonSanderson posted another. You replied with Do you see the source of my confusion?
Yep. Platinum and palladium are down somewhere between the two, 4-5%.
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