This is one of four clay tablets, all from the middle of the sixth century BCE and housed in the Vorderasiatische Museum, Berlin, which detail the rations given to ‘Ya’u-kīnu, king of the land of Yāhudu’, his five sons, and other royal captives.
Ya’u-kīnu is usually identified with Jehoiachin, the king of Judah taken into captivity in 597 BCE, when the Babylonians laid siege to Jerusalem the first time.
in 2 Kings 25:27-30 (paralleled by Jeremiah 52:31-34) records Jehoiachin receiving relatively favorable rations from the Babylonian king, as well as the presence of other royal deportees in Babylon. This appears to be corroborated by the cuneiform rations tablets.