The image is a black and white photograph of a large group of people gathered on a street in a city. The photograph is divided into two sections, with the left side showing a large crowd of people on horseback and the right side showing the aftermath of a battle.

In the center of the photograph, there is a large building with a clock tower and a crowd of soldiers on horse-drawn carts. The building appears to be a government building, as there are several flags flying in the background. The sky is cloudy and there are trees and other buildings in the distance. The text on the photograph reads "L'agitation ouvrière au pied de la fortèresse, labour unrest at the foot of the fortress."

The photograph appears to have been taken during the French Civil War, as the soldiers are dressed in military uniforms and are engaged in a fierce battle. The crowd is made up of people of different ages and genders, and some are holding flags and banners. The overall mood of the image is tense and somber.