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<span>A pier glass, otherwise known as a trumeau mirror is used in decorating a room. Pier glass was common in the parlors of homes during the 18th century. The mirror has a long and tall shape. You may often find it being in the same shape as the rooms windows. Pier glass can also be described as a mirror which is placed on a rooms pier. The pier being a wall between two windows that is supporting an upper structure.</span>
