Piece of Chantilly China?

This is a piece of china, a swan,  that is 3" tall, 3 1/2 inches long and 2 1/2 inches wide. It has a lid with a notch in it as if for a salt spoon. It has the Chantilly trademark painted on it , it is in white with the blue trademark and on the bottom it has  "Jecore' a 'la main a Chantilly" and the Chantilly trademark handpainted on it. The signature and the trademark on the bottom were done before firing and is permanent.

I cannot find anything like it anywhere on the web and am wondering if this is a genuine Chantilly and what it is worth. If not, what is it, and what is it worth? In either event, I'd like to sell it if it has value.

Thanks in advance for your assistance

CBierwerth