There is a wall label just visible at the left edge of this frame. It says 1871. That year is doing a lot of work. The painting is Maximilien Luce’s Une rue à Paris en mai 1871, completed around 1903–06 — more than thirty years after the events it depicts. Luce was seven years old when the Versaillais troops swept back into Paris and ended the Commune in what became known as la Semaine sanglante, the Bloody Week.