Good luck, Tim.
I suspect you'll get a good answer on the wood ID if it's tropical. Even oak wood is variable enough that they can get it to at least subgenus, if not species. The only challenge is whether they have that species in their type collection or not.
On the other hand, it's good to know that we came up with the same answer as the collections managers of the British Museum (i.e. what the heck is it?). Kudos to us.
Best,
F
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