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I am convinced, but take pics at a lower angle toward and away from the ends. Into and out of the light. Not dead-on, so to speak!

2nd pic in post 7 tells me elephant ivory. Cut the way it is, shreger lines are buried. Can see the edges of them, JMO

It's a Wade and Butcher, Andrew. That diamond-shaped tang is quite unusual. Do I see bottom jimps?
Very nice razor!

Reminds of one I have which is walrus ivory. Take some pics into and away from the light at an angle.
Looking for Shreger lines or absence thereof.