Vintage Abalone Shell 7 inches This was from my grandmother's collection, so about 50 or 60 years old. Could be older. It looks like there is some kind of fossil on the bottom? Edges are breaking down a bit, because of the age. But overall in good shape. Could be used for holding jewelry. As a friend pointed out, these could be extinct soon. Certainly on the endangered list. This is a old shell. Downsizing, see other ads, for more shells, rare books, pictures, frames, fireplace screen, book ends, etc....