Draft vignette for Opticorum libri sex by Franciscus Aguilon, circa 1613, Peter Paul Rubens, circa 1613

Pen and brown ink, brown ink wash and white gouache highlights. Object Type: painting. Genre: textbook. Date: circa 1613. Dimensions: height: 10 cm (3.9 in) ; width: 14.6 cm (5.7 in). Medium: ink on paper. Collection: Private collection. Rubens - draft vignette for Opticorum libri sex by Franciscus Aguilon, c. 1613