As (cuneiform)

The cuneiform as sign, also aṣ, and az, is found in both the 14th century BC Amarna letters and the Epic of Gilgamesh.

In the photo of the bottom half of Amarna letter EA 365 (subject corvée farm work), it is used to name the workers as: LÚ-MEŠ-(plural)–ma-as-sà-meš-(plural), (amēlu-massu)[1][2] In the Epic of Gilgamesh, (Tablets I-XII) it is used as follows: as, 26 times, aṣ, 25, and az, 21.

[3] In the Amarna letters, it is rendered differently from the electronic, digitized version.

In Amarna letter EA 362, Rib-Hadda to Pharaoh, a long discussion involves the 'territories' (city-states), and other individuals, and unrest in the region surrounding Byblos.

The sign is used in the word "falsehood", ('lie'), (ka-az-bu-te), line 53, Rib-Hadda claiming he is not lying, (or misleading) the Pharaoh.

(digitized)-Cuneiform sign for as , aṣ , az
Amarna letter EA 365 , "Furnishing Corvée Workers" , Biridiya to Pharaoh, reverse (lines 15–30, (31)).
5th line from bottom, (line 23), " LÚ - MEŠ – ma - as -sà- meš (and)". Line 25, 3rd from bottom, repeats the long name. (high resolution, expandible photo)