Jitsu-in is a Japanese stamp.Is used for important files.
The contract, buying a home, Administrative Record ... etc. For very important files, it registers a Jitsuin for mayor, (inkan Toroku) The town provides a Card "inkan shomei" the secau guarantees that person.If you do not have this certificate, the file will not accept.
For the material are chosen material does not break, take a long time.Stone will not accept. The stone will risk breaking.
If the police are not the same, it does not recognize your Inkan, the file will be denied.