X-radiograph(s) of "Annunciation", 1368 - 1415
Artist of original: Niccolò di Pietro Gerini
X-radiograph(s) of "Madonna and Saints", 1368 - 1415
Artist of original: (?) Niccolò di Pietro Gerini
X-radiograph(s) of "Scholar", 1699-1763
Artist of original: (?) Giuseppe Nogari
X-radiograph(s) of "Saint Augustine", born 1316-1320, died 1373 or 1374
Artist of original: Allegretto Nuzi
X-radiograph(s) of "Elegant Company", c. 1635 - 1708-1710
Artist of original: Jakob Ochtervelt
X-radiograph(s) of "Woman Artist", c. 1635 - 1708-1710
Artist of original: Jakob Ochtervelt
X-radiograph(s) of "Sir Anthony Mildmay", c. 1565-1617
Artist of original: Isaac Oliver I
X-radiograph(s) of "Adoration of the Child", c. 1315-1368
Artist of original: Orcagna
X-radiograph(s) of "Crowning of the Virgin", c. 1315-1368
Artist of original: School of Orcagna
X-radiograph(s) of "Annunciation, Nativity, Crucifixion and Entombment", 1339-1399
Artist of original: Silvestro dei Gherarducci
X-radiograph(s) of "Madonna and Saints", 1284 - 1317
Artist of original: Deodato Orlandi
X-radiograph(s) of "Virgin and Angels", c. 1491/92 - 1542
Artist of original: Bernard van Orley
X-radiograph(s) of "Pieta", c. 1491/92 - 1542
Artist of original: Bernard van Orley
X-radiograph(s) of "Dr. Zelle", c. 1491/92 - 1542
Artist of original: Bernard van Orley
X-radiograph(s) of "Old Fiddler", 1610 - 1685
Artist of original: Adriaen van Ostade
X-radiograph(s) of "Two Smockers", 1610 - 1685
Artist of original: Adriaen van Ostade
X-radiograph(s) of "Golden Wedding", 1610 - 1685
Artist of original: Adriaen van Ostade
X-radiograph(s) of "Thomas Becket (?)", active c. 1440-1465
Artist of original: Albert van Ouwater
X-radiograph(s) of "Madonna and Child", 1420 - 1475
Artist of original: School of Dieric Bouts
X-radiograph(s) of "Raising of Lazarus", active c. 1440-1465
Artist of original: Albert van Ouwater