What you are talking about is the riding seal on the real estate license, which should be half, which is also a method of anti-counterfeiting of the real estate license.

When the housing management department issues the property right certificate, it covers the sewing place where the home page of the property right certificate and the stub of the property right register are connected, and the position is basically equally divided (generally 50-50 or 46-50). After the home page of the property right certificate and the stub of the property right register are spliced together, they can be stitched together to form a complete and correct seal, which shows that the property right certificate is true.

For example, as follows: