Self-portrait of Rembrandt, Etching at a Window, Rembrandt van Rijn, 1648
Rembrandt is hard at work. His concentration is evident as he studies his reflection in the mirror. The artist is drawing what he sees directly onto the copperplate, resting under his hand on a folded cloth. While in earlier self-portraits he dressed up in eccentric costumes, here he portrays himself in a simple hat and jacket, the clothes he normally worked in.