At what age did Picasso paint his first self portrait?

Picasso was 15 when he painted "self portrait with uncombed hair". His paintings span his entire career, although for most of the post-Cubist work, his identity in his paintings was symbolized by "The Painter", or the "Minotaur" rather than a literal representation of himself. Picasso's manner of self-depiction changed, of course, to match with his current style of painting, so it is interesting to compare the self-portraits from, for instance, the Blue Period to those done when he was working in a Cubist mode only a few years later.