Caillebotte

 This remarkable photograph shows the French painter Gustave Caillebotte (born on this day in 1844) in the Place du Caroussel in 1892 with his dog Bergère. Though smartly dressed, Caillebotte looks pretty rough, as if he's had a heavy night. The photograph was taken by Gustave's brother Martial, who was not only a photographer but a very eminent philatelist. Indeed, the important collection he and Gustave formed is now part of the British Library's philatelic collection.