
The image is a photograph of a sign on the side of a building that reads "PREFACE". The sign is written in black text on a white background and is mounted on a beige wall. The text is in both English and Chinese characters. Below the text, there is a list of names and dates of the event, including "Nanyang, called "the ancient times", "The famous iron-smelling center", and "Emperor Guangzhou Wu, founder of the Chinese Empire". 

The sign also mentions that the event was held at the Great Hall of the People in Beijing, China. It also mentions the greatest scientist in the world, "The greatest scientist of all time", "Strategist", "Now, we'd like to reproduce the splendid culture of China", and the display of wax images in order to promote the exhibition.

At the bottom of the sign, there are two bullet points that explain the event and its significance. The sign appears to be a reference to the event's history and significance.
