Can you help us identify this item?
It is 23″ long, 10″ wide at its widest point and appears to have been sliced as it is exactly 1 inch thick. The large hole in the middle is 2.5 x 3″.
It looks spongy in the center, but it is composed of a hard material. Our guess is that it is some kind of bone.
Any thoughts or guesses? If it is a bone, what part of what kind of animal do you think it is? If it is not bone, what do you think it could be?