Jim Davis is one of the early legends from the marble world, and this marble, created clear back in the 90's, features an ACTUAL piece of the Berlin Wall encased inside of it. There are a couple of large air bubbles around it, and the surface of the marble isn't perfect, but who cares, because this is history, encased in crystal! I love to see different fun things memorialized in marbles, and historical things like this are as cool as they come. As far as I know, it's the only one of its kind, and as such is a super sweet slice of marble history!! Signed 'Jim Davis 98'.