How would you clean this whatsit?

[myelo1023]

I have absolutely NO clue as to what this is, but probably won't even be able to figure anything out unless I can clean it up more. I've put in the tumble and TRIED my electrolosis, with no luck, however, my electrolosis method does not appear to be working to great anyway. Any suggestions on how to clean some of this up w/o totally destroying it? Thanks.

 

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