The right one is a fake for sure.
The left one lookes original to me, a bit low quality guns on the destroyer than I get used to on Schwerin badges, but I can't find more fault.
Wow, that's a first for me. We've often seen de-nazified badges but this is the first time I've seen one de-Schwerinized! Not sure why anyone would do that!
But I agree with Hans, the Tombak Destroyer on the left looks fine while the zincer on the right is an obvious fake.
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