!!! Thank you for answering my post!!! There is a bit of shelf wear on them, but not much. The curious thing is that the smallest one has a white spider web crack on it's base and the rim of that one has been polished. My inclination is to think that it must have fallen off a shelf and the person cared enough about the pieces to have the rim professionally polished, as I'm assuming it was chipped as well. Otherwise, I don't see why that would be the only of the three with a cut and polished rim. And no, there are no signatures or markings. Have you ever come across a surface texture, such as these?