Archaeologists in the ancient city of Ur have discovered a unique cuneiform archive belonging to the "Master of the Royal Stone-Vat Carvers." The tablets contain detailed technical instructions for the precision carving of diorite and alabaster vessels, including specific calculations for setting up ancient bow-lathes to achieve perfect symmetry.
This find highlights the industrial precision of Sumerian stone-working guilds. The archive includes standardized templates for various vessel shapes and records of raw material imports from the Iranian plateau, confirming that the royal workshops were hubs of both artistic mastery and rigorous engineering standards during the Third Dynasty of Ur.