What is this?

[glatt]

I don't know. But it's got hair or fur, or maybe silk (but I doubt it) held together with some sort of yucky dried goop.

Reminds me of a hairball yacked up by a cat, or a trichobezoar cut out of someone's stomach. It also looks a bit like a moth's cocoon. Or a close up of a low quality beaver felt hat. Nothing Abraham Lincoln would wear.

That's my line of thought, but I don't know.