Hello, the current logo and logo are similar to ancient plaques, especially in public service institutions, such as stations, gymnasiums, schools and hotels. It is common for someone to write a few big letters on the roof.

This kind of writing content is generally written by famous people or related people, and then changed from this original handwriting to a physical signboard.

For example, the plaque "Peking University" at the main entrance of Peking University was personally mentioned by Chairman Mao.