From the automaton description:
This large Papier-mâché / composition Automaton Clockwork Nodder. This well dressed gentleman is of a grand scale, being just under 19" tall from the top of his head to his heels in the sitting position (from the shelf to the top of his head he measures approximately 12" and is 9" wide at his knees). His most unique feature is his ability to sit on a shelf, table, or fireplace mantle while hanging his legs over the edge. The clockwork mechanism will run for over an hour on just one winding! The man's bottom has been made specifically to sit in the position that best allows the mechanism to function, and still allows for minor adjustment for best performance. The winding shaft is located just below his waist on his back. When wound, this plump gentleman will sit on your shelf and nod his head up and down, simultaneously raising and lowering his right arm as if waving his cane, all while sticking his tongue in and out repeatedly.
Here's the ebay listing for the nodding man automaton.