Vintage Knickerbocker? Humpty Dumpty stuffed plush doll

This is a vintage Humpty Dumpty stuffed doll with a hard celluloid face, *possibly* made by Knickerbocker. Sits at approx 12-13” tall. Condition: Body condition is good for his age, with no major fabric damage. He sits at a bit of an angle as you can see from the photos, likely from being in storage for a while. His bow tie has come partially loose but could be easily reattached. This doll has visible face damage above the left eye. A piece of celluloid has chipped right out and the stuffing underneath is visible. Some cracks remain - please see photos. The celluloid material is quite delicate so the doll should be handled with caution.