1 Pound 1926 - Egypt
This note was issued on 1st July 1926, as the 4th issue of the Egyptian pound. It is the first Egyptian paper money to have a watermark, and the first one to bear a picture of a person (Edress).
Some people said that Edress was a gardener in the palace of Sultan Fouad I and he saw in a dream that the sultan would be the king of Egypt instead of being a sultan. And Some said that Edress knew of a plot to kill king Fouad and told the king about it, so he was rewarded by putting his picture on the Egyptian 1 pound note.
Probably the most reliable opinion is the second one because Fouad became the king of Egypt in 1922 and the pound was issued in 1926.