On ancient coins we often find Libertas holding what is usually described as an abacus, the ancient counting board or calculator using beads. The reverse was issued to mark a largesse, a money offering to the people of Rome. Recently, Curtis Clay argued that what we see on the coins is actually a money shovel: a wooden tablet with round holes, very resembling to a modern coin collection tray. This shovel would be placed in the coin chest, removed full of coins and shaken until the desired number of coins would remain in the holes.