What medium is "Madame Henri François Riesener (Félicité Longrois, 1786–1847)"?

Madame Henri François Riesener (Félicité Longrois, 1786–1847) is Oil on canvas.

Is "Madame Henri François Riesener (Félicité Longrois, 1786–1847)" in the public domain?

Yes, Madame Henri François Riesener (Félicité Longrois, 1786–1847) is in the public domain and available for free download under CC0 license.

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Eugène Delacroix, 1835