Medieval smiley face
This is a true feel-good doodle, drawn by a medieval reader and found in the lower margin of a 13th-century page. The surprisingly modern-looking smiley face is wearing glasses and seems to float towards the text in a balloon, quite content. This little scene made my day.
Pic: Conches, Bibliothèque municipale, MS 7 (main text 13th century, doodle 14th or 15th century). More medieval doodles in this Tumblr.