A small - approximately nine and a half by eleven and a half inches - oil painting on wood. I've been able to find nothing on the charming subject of this portrait except that it appears he was, like the artist, of Swiss nationality. The small panel's very noticeable craquelure only serves, I think, to emphasize the young man's quite dewy beauty. (http://godsandfoolishgrandeur.blogspot.nl/2016/11/les-yeux-dun-ange-roux-portrait-of-m.html)