Attolis company executes numbering on two Xerox digital printing machines. During the numbering process every piece of the run is printed with a serial number (not page number, but product number). As a result, each item is given its unique individual number.
Numbers are printed on tickets, customer cards, tags. Numbering is applied in production of promotional chips - at first cardboard chips of any shape are manufactured, then every piece is printed with a unique number, the number may be covered with a scratch-off layer (is to be further erased by the receiver with a coin). Such chips are frequently put into packets with snacks during promotional campaigns and it is supposed that there are some winning numbers among them.