Reverse side of the portrait of Ginevra de' Benci, Leonardo da Vinci, between 1474 and 1478

Object Type: painting. Date: between 1474 and 1478. Dimensions: height: 38.8 cm (15.2 in); width: 36.7 cm (14.4 in). Medium: oil on panel. Collection: National Gallery of Art. Leonardo da Vinci - Reverse side of the portrait of Ginevra de' Benci - WGA12683