Leonardo da Vinci, Ginerva de`Benci [obverse], c. 1474/1478
Original, The National Gallery of Art, Washington, DC. Visited in 2017-2018.
Leonardo da Vinci, Ginerva de`Benci [obverse], c. 1474/1478
Leonardo da Vinci, Ginerva de`Benci [reverse], c. 1474/1478. Wreath of Laurel, Palm, and Juniper with a Scroll inscribed Virtutem Forma Decorat
Original, The National Gallery of Art, Washington, DC. Visited in 2017-2018.
Leonardo da Vinci, Ginerva de`Benci [reverse], c. 1474/1478. Wreath of Laurel, Palm, and Juniper with a Scroll inscribed Virtutem Forma Decorat
Associate of Leonardo da Vinci (Francesco Napoletano?) - An Angel in Green with a Vielle, c. (1490-9) 
Original, The National Gallery, London. Visited in 2018-19.
Associate of Leonardo da Vinci (Francesco Napoletano?) - An Angel in Green with a Vielle, c. (1490-9) 
Leonardo da Vinci, The Virgin and Child with Saint Anne an Saint John the Baptist (The Burlington House Cartoon), c. 1499-1500
Original, The National Gallery, London. Visited in 2018-19.
Leonardo da Vinci, The Virgin and Child with Saint Anne an Saint John the Baptist (The Burlington House Cartoon), c. 1499-1500
Leonardo da Vinci, The Virgin of the Rocks, c. 1491-2-9 and 1506-8
Original, The National Gallery, London. Visited in 2018-19.
Leonardo da Vinci, The Virgin of the Rocks, c. 1491-2-9 and 1506-8
Leonardo da Vinci, Study of a Bear Walking, Sketch of a Forepaw, early to mid 1480s
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Leonardo da Vinci, Study of a Bear Walking, Sketch of a Forepaw, early to mid 1480s
Workshop of Leonardo da Vinci (Possibly Gian Giacomo Caprotti, called Salai) -Madonna and child with Saint Anne in a Landscape, c. (1508-13)
Original, GETTY. Visited in 2018.
Workshop of Leonardo da Vinci (Possibly Gian Giacomo Caprotti, called Salai) -Madonna and child with Saint Anne in a Landscape, c. (1508-13)
After Leonardo da Vinci, Vaclav - Wenceslaus Hollar, A young man caressing an old woman, 1646
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
After Leonardo da Vinci, Vaclav - Wenceslaus Hollar - Grotesque old man with flattened nose in profile to left (1625-77)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
After Leonardo da Vinci, Vaclav - Wenceslaus Hollar - Head of an old man with tufts of curly hair around ear in profile to left (1644-52)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
After Leonardo da Vinci, Vaclav - Wenceslaus Hollar - Head of an old man with a pronounced chin, short cropped hair and gaping mouth showing teeth in profile to left (1625-77)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Leonardo da Vinci, The drapery of a kneeling figure. c. 1491-1494
Original, MOMA, New York. Visited in 2017.
Leonardo da Vinci, The drapery of a kneeling figure. c. 1491-1494
Albrecht Durer After Leonardo da Vinci, “The Fourth Knot”. Interlaced Roundel with a Round Medallion in its Center, 1521 before
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Albrecht Durer After Leonardo da Vinci, “The Fourth Knot”. Interlaced Roundel with a Round Medallion in its Center, 1521 before
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Title-page to 'Varie Figuræ & Probæ' (1645)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Title-page to 'Varie Figuræ & Probæ' (1645)
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Head of a bald, sinewy man looking downwards (1648) .
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Head of a bald, sinewy man looking downwards (1648) 
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Sectioned skull in profile to left with the left side of the cranium removed (1651)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Sectioned skull in profile to left with the left side of the cranium removed (1651)
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Title Page, Divers Anticke Faces (1677)
Original, MET-NY. Visited in 2017-20.
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Title Page, Divers Anticke Faces (1677)
Vaclav - Wenceslaus Hollar After Leonardo Da Vinci - St. Anne (1645)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Vaclav - Wenceslaus Hollar After Leonardo Da Vinci - St. Anne (1645)
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Two deformed heads facing each other (1645)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Vaclav - Wenceslaus Hollar After Leonardo da Vinci - Two deformed heads facing each other (1645)
Vaclav - Wenceslaus Hollar, After Leonardo da Vinci - Bust of a deformed old woman with one tooth, facing left (1665)
Original, The Metropolitan Museum of Art, New York. Visited in 2017-2023.
Vaclav - Wenceslaus Hollar, After Leonardo da Vinci - Bust of a deformed old woman with one tooth, facing left (1665)
Leonardo da Vinci, Madonna of the Carnation, c. 1475
Original, The Pinakotheken, Munich. Visited in 2019.
Leonardo da Vinci, Madonna of the Carnation, c. 1475
Leonardo da Vinci, Madonna of the Carnation, c. 1475
Workshop of Leonardo da Vinci and Marco d'Oggiono, Virgin and Child with the Young Saint John the Baptist, c. (1490-95 figures), c. 1510-15 landscape
Original, Szepmuveszeti - Museum of Fine Arts - Budapest. Visited in 2019.
Workshop of Leonardo da Vinci and Marco d'Oggiono, Virgin and Child with the Young Saint John the Baptist, c. (1490-95 figures), c. 1510-15 landscape
Leonardo da Vinci, Saint Jerome Praying in the Wilderness, Begus, ca. 1482/85
Original, Vatican City, Musei, Gallerie Pontificie. MET, New York. Visited in 2017/2021.
Leonardo da Vinci, Saint Jerome Praying in the Wilderness, Begus, ca. 1482/85
Leonardo da Vinci, Saint Jerome Praying in the Wilderness, Begun ca. 1482/85
Workshop of Leonardo da Vinci, attributed to Giovanni Francesco Melzi, Saint Jean Baptiste, 1510-1520
Original, Louvre Museum, Paris. Visited in 2021.
Workshop of Leonardo da Vinci, attributed to Giovanni Francesco Melzi, Saint Jean Baptiste, 1510-1520
Leonardo da Vinci, Saint Jean Baptiste, around 1508 - 1519
Original, Louvre Museum, Paris. Visited in 2021.
Leonardo da Vinci, Saint Jean Baptiste, around 1508 - 1519
Leonardo da Vinci, Portrait of Lisa Gherardini, wife of Francesco del Giocondo, known as the Mona Lisa or Monna Lisa, 1503 - 1519
Original, Louvre Museum, Paris. Visited in 2021.
Leonardo da Vinci, Portrait of Lisa Gherardini, wife of Francesco del Giocondo, known as the Mona Lisa or Monna Lisa, 1503 - 1519
Leonardo da Vinci, Portrait of a woman, wrongly said La Belle Ferronnière, around 1490-1497
Original, Louvre Museum, Paris. Visited in 2021.
Leonardo da Vinci, Portrait of a woman, wrongly said La Belle Ferronnière, around 1490-1497
Leonardo da Vinci, The Virgin, the Child Jesus and Saint Anne, known as Saint Anne, around 1503 - 1519
Original, Louvre Museum, Paris. Visited in 2021.
Leonardo da Vinci, The Virgin, the Child Jesus and Saint Anne, known as Saint Anne, around 1503 - 1519
Leonardo da Vinci, The Virgin, the Child Jesus and Saint Anne, known as Saint Anne, around 1503 - 1519
Leonardo da Vinci,The Virgin, the Child Jesus, St. John the Baptist and an angel, says The Virgin of the Rocks, around 1483-1490
Original, Louvre Museum, Paris. Visited in 2021.
Leonardo da Vinci,The Virgin, the Child Jesus, St. John the Baptist and an angel, says The Virgin of the Rocks, around 1483-1490
