We were five hours at the Orsay, first visiting the Manet/Degas exhibition, then, after a snack, doing favorite parts of the museum. The Manet/Degas pairing was a deep dive into the earlier works of both, friendly rivals, an odd couple really, Manet never joining the Impressionist group--though his brother married Berthe Morisot--and Degas one of its leading figures. Most of the paintings were from the Orsay's massive holdings, many we'd never seen before, but American museums were well represented as well. It was a large exhibition, many rooms. I'll just post pix of a few of the most famous items and a few notables too. 
FWIW, as we went through the exhibition, I took pix mostly of the things that I found impressive or interesting, thinking I'd tally the score later. As you'll see, there's no need to tally...it's mostly Manet. Sorry, Degas fans.
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| In a queue to get into the Manet/Degas exhibition, we had ample opportunity to study Courbet's monumental Artist's Studio, perhaps
 the apex of Realism, placed there no doubt by the museum staff to
 emphasize what Manet and Degas were following...
 
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| Great interpretive signage throughout; I won't attempt to summarize the many insights and lessons
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| Manet was painted by numerous contemporaries, but did only one self-portrait; above is an 1868 portrait by Degas of Manet and
 his wife; Manet was so unhappy with Degas' portrait of Mme. Manet
 that he tore this strip out of the painting; Degas was deeply hurt; but
 recovered
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| A likeness of Filippino Lippi by Manet during Italian travels and study, 1850s; both Manet and
 Degas were from well-to-do upper middle families
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| Manet, La Peche, 1862; the couple in the foreground are Manet and his soon-to-be bride
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| Degas, Souvenir de Velazquez, 1858; during his travel and study
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| Manet, Olympia, 1865; a shocker; but what shocked people then was her expression and the many trappings and symbols of a
 prostitute; audiences were already accustomed to being shocked
 by Manet, however: Le Dejeuner sur l'herbe, perhaps Manet's most
 famous painting, had already appeared in the Salon des Refuses in
 1863; both paintings featured the same nude model; Le Dejeuner
 sur l'herbe was not part of this exhibition; it remained upstairs,
 on the 5th floor, part of a large collection the donor of which had
 stipulated never to be moved or separated
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| Manet's 1868 portrait of a very young Emile Zola; Zola had defended Manet's works in the press
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| Manet, Jeanne Duval, 1862; said to be Baudelaire's mistress | 
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| Degas, Young Woman with Ibis,1861, MMA, from Degas' Italian travel and study
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| Manet, Berthe Morisot au bouquet de violettes; Manet was well regarded in the Morisot salon and
 did more than one portrait of Berthe; Manet's brother
 married Berthe, whose stock as a painter and
 Impressionist was much on the rise; the color black
 was forbidden in the Impressionist code; here Manet
 uses it and the violets to identify a stylish Parisian
 woman, no longer in mourning for the Franco-Prussian
 war and the Paris Commune; we were at the opening
 of the Orsay's Morisot exhibition in 2019
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| Manet, The Dead Toreador, 1860s; alternatively titled: Bulls, 1; Toreadors, 0
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| Manet, Le Repos, 1871; Berthe Morisot again, this time in a pose that some praised for "its
 intense modernity"
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| Manet, Berthe Morisot a l'eventail, 1872 | 
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| Manet, The Evasion of Rochefort, 1881; Rochefort's escape from the penal colony in New Caledonia; he
 had been a critic of Napoleon III; Manet, unlike the
 Impressionists, was not "above" political comment
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| Degas, A Cotton Office in New Orleans, 1873; LSS: before he was an Impressionist, Degas visited the family cotton trade
 offices in New Orleans, producing this painting; the family
 were slave-owners, supported the CSA, and continued the
 suppression of former slaves in Reconstruction...
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| Manet, The Combat of the Kearsage and the Alabama off the Coast of Cherbourg, 1864; Manet was anti-
 slavery, supported the Union, and celebrated its
 victory; that's the Alabama burning and sinking
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| Manet, The Monet Family in the Garden, 1874; about as Impressionistic as Manet gets
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| Degas, Boats at Sea,1868 | 
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| Manet, Marcellin Desboutin et Ludovic Lepic, 1876; Ludovic was a famous engraver, here at work, Lepic
 a noble; Desboutin appears in several of Manet's works
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| To wit, this, one of Manet's best known, In the Cafe, or L'Absinthe, 1876; the woman imbibing the green
 goddess is another of Manet's friends, Ellen Andree,
 an actress
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| Manet, The Music Lesson,1868; the couple are Zacharie Astruc and Mme. Astruc, friends of the painter; I contend that the teacher
 is on the right...
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| Upstairs, 5th floor, Le Dejeuner sur l'herbe, 1863 |