The key players in the Dreyfus Affair, featured on this never-mailed 1898 French postcard.

This first-day-of-issue cover for France’s 2006 stamp commemorating Alfred Dreyfus features the officer rightfully declaring his innocence during his sentencing.

This postcard, produced in Berlin during the height of the Dreyfus Affair, features Emile Zola escorting Dreyfus from Devil’s Island.

This postcards, produced in Berlin during the height of the Dreyfus Affair, features Esterhazy being sent to Devil’s island while Dreyfus looks on from the side of ”La Liberte.”

This French postcard, produced in 1898, features a grotesque representation of the Dreyfus Affair, with anti-Jewish French journalist Edouard Drumont roasting a nude, caricatured Alfred Dreyfus on a spit.

Jules Guérin was another prominent anti-Dreyfusard. The founder and leader of the Anti-Semetic League of France and editor of the weekly French paper L’Antjuif, Guérin was the driver behind many anti-Dreyfus protests and movements that took place during the affair.

A postcard produced during the affair, featuring the handwriting of both Esterhazy, the true criminal, and Dreyfus, the scapegoat.

7-9 in a series of 12 postcards telling the full story of the Dreyfus Affair.

10-12 in a series of 12 postcards telling the full story of the Dreyfus Affair.

4-6 in a series of 12 postcards telling the full story of the Dreyfus Affair.

1-3 in a series of 12 postcards telling the full story of the Dreyfus Affair.

A 1904 postcard picturing anti-Jewish journalist Édouard Drumont and his anti-Jewish newspaper, La Libre Parole.