The image is a photograph of a sign in a museum that reads "Extension del Imperio Mexico". The sign is rectangular in shape and has a dark blue background with white text. On the right side of the sign, there is an illustration of a map of Mexico in orange color. The map is divided into different sections, each representing a different region of the country. 

The text on the sign is written in Spanish and appears to be explaining the extension of the Imperial Mexico region. The text is in a larger font size than the rest of the text. Below the illustration, there are several bullet points that explain the different regions and their boundaries. The bullet points are written in a smaller font size and are arranged in a grid-like pattern.

Overall, the sign appears to provide information about the extension and its significance in Mexico.