You Collection, Upper Volume
Radical: See (jiàn)
Entry: Du
Kangxi stroke count: 16
Page 1136, Entry 06
According to the Jade Chapters (Yupian), this is the ancient form of the character meaning to see or observe.
In the Book of Changes (Yijing), within the Qian hexagram: The sage appears and all things are seen.
In the Records of the Grand Historian (Shiji), Biography of the Wei Family: A record of what the ears have heard and the eyes have seen.
Also, according to the History of Liao (Liaoshi), within the Explanations of the National Language (Guoyujie): Tu du is the name of a small state beyond the ancient frontiers.
There is also a surname by this name, found in the Garden of Surnames (Xingyuan).
There is also a double-character surname. In the Strategies of the Warring States (Zhanguoce): Du Si Zan is a person from the State of Wei.