Abstract: A coin counting machine for the valuation of large, multidenominational aggregations of coins is comprised of a rotating disk assembly that determines the coins value according to its size as it passes over a photoelectric unit. Large mixtures of coins are dumped into a cylindrical coin deposit tray that is centrally disposed upon two circular disks with grooves or passageways formed therebetween. The tray has a plurality of equidistantly spaced exit recesses in its walls that connect with the passageways. As a motor spins the disk assembly, coins disposed within the bin are flung outwards through the recesses and along the passageways where a photoelectric sensor unit records the value of each coin according to its size and relays the information to a microprocessor control unit.