What medium is "Madame Frederic Breyer (Fanny Hélène Van Bruyssel, 1830–1894)"?

Madame Frederic Breyer (Fanny Hélène Van Bruyssel, 1830–1894) is Oil on canvas.

Is "Madame Frederic Breyer (Fanny Hélène Van Bruyssel, 1830–1894)" in the public domain?

Yes, Madame Frederic Breyer (Fanny Hélène Van Bruyssel, 1830–1894) is in the public domain and available for free download under CC0 license.

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Gustave Courbet, 1858