This tablet was discovered in July 2007, and names Nabu-sharrusu-ukin, the chief eunuch of Nebuchadnezzar of Babylon. It is a record of him paying tax to the temple of Esagila in Babylon in 595 BC.
"(Regarding) 1.5 minas (0.75 kg) of gold, the property of Nabu-sharrussu-ukin, the chief eunuch, which he sent via Arad-Banitu the eunuch to (the temple) Esangila: Arad-Banitu has delivered (it) to Esangila. In the presence of Bel-usat, son of Alpaya, the royal bodyguard, (and of) Nadin, son of Marduk-zer-ibni, Month XI, day 18, year 10 (of) Nebuchadnezzar, king of Babylon."
This person is named as one of the officials accompanying Nebuchadnezzar when he besieged Jerusalem in 586 BC, when King Zedekiah was blinded and taken to Babylon. "In the ninth year of Zedekiah king of Judah, in the tenth month, Nebuchadnezzar king of Babylon marched against Jerusalem with his whole army and laid siege to it; and on the ninth day of the fourth month of Zedekiah’s eleventh year, the city wall was broken through. Then all the officials of the king of Babylon came and took seats in the Middle Gate: Nergal-Sharezer of Samgar, Nebo-Sarsekim a chief officer, Nergal-Sharezer a high official and all the other officials of the King of Babylon.” (Jer 39:1-3)
This is an amazing discovery, showing the reliability of the Book of Jeremiah to the smallest detail.