Anvils

http://en.wikipedia.org/wiki/Anvil

An anvil is a basic tool. In the simplest terms it is a block with a hard surface on which another object is struck. The inertia of the anvil allows the energy of the striking tool to be transferred to the work piece. In most cases the anvil is used as a forging tool. Before the advent of modern welding technology, it was a primary tool of metal workers. Many anvils are antiques and should be treated with care. The great majority of modern anvils are made from steel though other types exist. Because anvils are very ancient tools and were at one time very commonplace, they have acquired symbolic meaning beyond their use as utilitarian objects.