Experts have reclassified this painting, "Bearded Old Man", as one done by Rembrandt when he was 24 in the year 1630. X-rays show that there is a self-portrait of Rembrandt as a young man sketched underneath. This is only 6" x 8". Small works can be quite masterful. This one has wonderful lighting and great depth of feeling. LINK
I previously blogged about a current show at The Clark Art Institute, showing a couple of examples of Rembrandt's self-portraits as a young man.