The image is a photograph of a sign in Vietnam that reads "Tay Son Dynasty". The sign is white with black text and is mounted on a wooden wall. The text is written in Vietnamese and translates to "In the 18th century, the Tay Son Dynasty was founded by Nguyen Nhac and from 1788, the Nguyễn Dynasty tried its best to renew the economy, restore the culture, carry out the progressive reforms of national management." 

The sign also mentions that the dynasty was established in 1778 and that it was founded in the northern part of the country. It also mentions the history of the dynasty and its influence on the North and South.

At the top of the sign, there is a legend that explains the meaning of the text. The legend explains that Nguyen Nhaoc was a leader of the Nguyen Dynasty and that the government was responsible for protecting the nation. The image also includes a brief description of the history and its significance.