Abstract: An appliance is disclosed for illustrating the prospective order of use by a plurality of users of a coin-operated device having coin receiving means. The invention comprises a support having a plurality of coin retaining means each being capable of retaining a coin insertable within the coin-operated device. Display means displays the order in which a plurality of coins are placed in the plurality of coin retaining means by a plurality of users, respectively. Indicator means indicate the one of the plurality of coin retaining means corresponding to the present user of the coin-operated device. The appliance is mounted to enable inspection thereof to indicate the order of prospective use of the coin-operated device in accordance with the display and indicator means. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.