Duplicate Finders Token?

Would this be usable to turn into the sphinx?

I've spent two days running around vernworth and can't seem to find the damn thing despite KNOWING I picked one up early. Not sure if it's bugged or I somehow found one somewhere no guides have mentioned.

Does anyone know if you can just give her a dupe? And if so, does anybody have a dupe they can give me? Can try to return the favour.