Karl Goetz was a renowned metal maker in Germany for the first half of the 20th century.
He created these metals in 1920 to promote anti-black sentiment.
This particular one is called The Watch on the Rhine or Die schwarze Schande (The Black Shame).
He wanted to stir up Germans against the black colonial Frenchmen occupying Germany, especially Rhine territory.
Warning they would be saying, 'Where the white women at'.