The image is a photograph of a plaque on a wall. The plaque is rectangular in shape and has a white background with black text. The text is written in Vietnamese and appears to be an introduction to the history of Hoa Lo Prison. The title of the plaque is written at the top in bold letters. Below the title, there is a subtitle in Vietnamese that reads "Introduction on Remains of HOA LO Prison". 

The plaque is located in a museum or exhibition space and is likely used to inform people about the prison's history and significance. It mentions that the prison was built in the early 20th century and that it was a prison in Vietnam. The image also includes a brief description of the prison and its significance in the history.

At the bottom of the image, there are several bullet points that provide further information about the institution and its history.