| 摘要 |
The invention relates to a fiduciary or security document with a printed design and security markings. According to the invention, the document (1) comprises two superposed security markings (100, 200), of which one is a periodic watermark grid and one is a coding by the cutting of the printed image (G) into parallel strips, the effect of the superposition of these two security markings thus being to affect the individual reading of said markings. The invention is used on fiduciary or security documents, for example on banknotes. <IMAGE> |
