Nope. Not a windstone. Windstones have glass eyes in them and have felt pads stamped with Windstone Editions. The oldest pieces do not have felt pads and are simply stamped on the bottom of the piece. Looking at the bottom, it doesn’t look to be made out of the same material as Windstones are (Windstones are made of gypsum, rather than resin or other materials).
It’s still a neat piece, but not a Windstone. 🙂