LMLK seals were stamped on the handles of large storage jars mostly in and around Jerusalem during the reign of King Hezekiah based on several complete jars found buried under a destruction layer caused by Sennacherib at Lachish.
These handles of pottery jars had been stamped before baking, with seals show symbols, either a four-winged scarab or a two-winged disc with LMLK, ‘belonging to the king’ written above it in Hebrew script and a place-name below it.
None of the original seals have been found, but about 2,000 impressions made by at least 21 seal types have been published.