| 摘要 |
The present invention relates in particular to a security document such as a bank note which is formed from a sheet (1) which comprises on at least one of the opposing faces (10, 11) thereof at least one protruding tactile mark or 'mark for the blind' (2) suitable for enabling the blind and partially sighted to identify a specific feature such as the face value of said document by touching said mark (2) and to participate in the determination of the authenticity thereof characterised in that said mark (2) is at least partially surrounded by at least one first textured area (3) i.e. a surface whereof the feel is different and differs from that of the rest of said sheet (1) the second face (11, 10) also having a second textured area (4). |
