Eugen Feener-but what is it?

I purchased this at an estate sale but I have no idea what it is or what it’s worth! Any help would be greatly appreciated!!!
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I’m going to take a wild guess based on some of the more modern peices I’ve seen. It would be a baking ban, sort of like a bundt pan or spring form pan? I’d also guess it could be for appetizers, such a finger sandwiches. Just a guess though and I’m usually wrong.