What have I got here? (brush pix)

Hi all.
So I've been using this brush for a couple of years, and don't really know what it is. It was a gift, from Tiffany and Co., but it's no longer made and they don't know the material. I've been assuming badger, because I've used a cheap boar brush from Old Spice before, and this doesn't feel anything like that: it's softer and the bristles are set with more "spray."

Can anyone tell me more about what I've got? The first pic is just a side view, the second looking into the bristles, the last looking down at my white lather bowl while the brush soaks in water.

Sure looks and spreads out like Badger,but who knows?