Netsuke of Crab on a Shell

Netsuke of Crab on a Shell by artist unknown. The object is a small sculpture, likely made of wood or similar material. The sculpture depicts a crab on top of a shell. The crab is dark brown with lighter brown highlights, and it has two large claws and four walking legs. The crab's body is rounded, and its eyes are small. The crab appears to be sitting on a shell that is light brown with a darker brown rim. The background of the image is white, with a slight shadow underneath the sculpture.