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20: ROBERT RAUSCHENBERG, Horsefeathers Thirteen - XI (from Horsefeathers Thirteen Series) < Modern Art & Design, 17 January 2021 < Auctions | Los Angeles Modern Auctions (LAMA)
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File:The 4 Marx Brothers in "Horse Feathers" - The Film Daily, Jul-Dec 1932 (page 269 crop).jpg - Wikimedia Commons
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