A painter never dates his works, and the chronological order of his works has only begun to form an outline in the review literature  It must be wrong to locate the time of a self portrait of the painter as 1930  In 1930, the painter was 63 years old
At the age of 63, it is impossible for a painter to paint himself as he was when he was young
 However, the young, black haired man in the painting is obviously the painter himself, but it is not a 63 year old man