FIELD: data carriers, in particular, securities, certificates, credit cards, telephone cards, as well as numbering devices for numbering of the data carriers. SUBSTANCE: data carrier has a serial number consisting of several characters, which individualizes the data carrier from a series of data carriers. The characters of the serial number are similar in value and arranged along a line having a curvature of an arched or wavy shape. The numbering device for data carriers, in particular, securities, bank notes, certificates, credit cards, telephone cards, etc., containing at least one numerator, which has digital disks with engraving units positioned on them, on which characters are made by engraving, which are similar in value, and positioned on the engraving units in such a manner that a number emerges, which is positioned along the line having a curvature of an arched or wavy shape. EFFECT: enhanced reliability of documents. 13 cl, 17 dwg
