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A Picture Gallery with an Artist Painting a Woman and a Girl. Allegory of the Art of Painting (1659 ` 1669) --Gillis van Tilborgh (Flemish, 1625-1678)
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The Invention of the Art of Drawing (the daughter of Butades of Sicyon and her Lover) (1804) --Johann Heinrich Ferdinand Olivier (德国艺术家, 1785 - 1841)