It´s a painting of a barricade during the Paris Comune, 1871
André Devambez
<a rel="nofollow" class="external free" href="https://useum.org/artwork/Barricade-the-Paris-Commune-May-1871-Andre-Devambez">https://useum.org/artwork/Barricade-the-Paris-Commune-May-1871-Andre-Devambez</a>