I don't. Looks like a browner of a pastel. But the blushing is amazing.
I am confused. You own it, and are wanting to sell it? But, you don't know what is? Where did you get it? And, what did you buy it as?
Honestly, I don't think you should be able to sell it as a pastel without proper pedigree. But, that's just me.
Good Luck, on it!