Blue ink in margin posters & prints

The Young Krishna Kills the Demon Vatsasura, who came in the Guise of a Calf, c.1730-1740 Indian School

Leaf from a Book of Hours: Two Devils, c. 1460 Coëtivy Master (circle of)

The Fox and the Turkey Hens: Illustration for the Fables of La Fontaine, 1733 Jean-Baptiste Oudry