https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/7666316
Illustration from the 1881 première of Jacques Offenbach's Les contes d'Hoffmann, showing the Olympia act (the acts are often rearranged, so it's easier and more accurate to use this convention.
Original public domain image from Wikimedia Commons
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