Credit instrument with fields identifying values of each digit of the amount

摘要

A credit instrument (100) comprising at least one region (110a, 110b) in which an indication of an amount of the credit instrument (100) can be written, the amount being suitable of being expressed by a predetermined number of digits each associated with a different degree of significance, in which, for each digit, a set (125i5-125f2) of fields identifying possible values of the digit is provided, each field being suitable of being marked substantially irreversibly according to the amount of the credit instrument (100).