Piotr Kropotkin 

This portrait photograph of Piotr Kropotkin, a prominent anarchist and geographer, was taken by Felix Nadar, a pioneering French photographer known for his portraits of prominent figures. The image showcases Kropotkin's sharp gaze and distinguished beard, capturing the intellectual and rebellious spirit of this influential thinker. The photograph is a testament to Nadar's skill in capturing the essence of his subjects, serving as a visual record of a key figure in the anarchist movement.