"A large building that dates to the time of the First and Second Temples, in which there was an amazing wealth of inscriptions, was discovered in a salvage excavation conducted by Zubair Adawi, on behalf of the Israel Antiquities Authority, in the village of Umm Tuba in southern Jerusalem (between Zur Baher and the Har Homa quarter), prior to construction work by a private contractor.
Considering the limited area of the excavation and the rural nature of the structure that was revealed, the excavators were surprised to discover in it so many royal seal impressions that date to the reign of Hezekiah, King of Judah (end of the eighth century BCE).