It has a field of the color Yale Blue with an open book and the Hebrew words Urim and Thummim inscribed upon it in Hebrew letters.

[1] Below the shield on a scroll appears Yale's official motto, Lux et Veritas (Latin for "Light and Truth").

The first known seal of Yale appears on the master's diploma of its future president Ezra Stiles in 1746.

In addition to the Hebrew words "Urim ve'Thummim" inscribed on an open book on a shield, it had the Latin words Lux et Veritas surrounding the shield.

[2] According to the Hebrew Bible, the priests used tools called the Urim and Thummim to discern the will of God.