Abstract: A kit for marking, identifying and controlling the transport of luggage is comprised of a tag arranged for attachment to a piece of luggage and having located on its face one of a selected group of distinctive geometrical shapes which is colored in one of a selected group of colors and which has an alphanumeric character located within the borders of the geometrical shape. Thus by having a large group of shapes, colors and alphanumeric characters, a very large number of identifying indicia is available, each of which is readily differentiable even at a distance and by an untrained observer. As an aid in communicating the identification of a particular geometrical shape, color and alphanumeric character combination, a group of identifying letters is marked on the tag, with the letters being uniquely associated with the particular combination of geometrical shape, color and alphanumeric character located on the tag.