Seals and Bulla were commonly used on important documents.The documents were tied with string,and the bula placed over the knot.The sender then pressed a seal into the clay bula,making it official.The seals were usually made from a signet ring worn by an official. in 1975, a collection of nearly 250 clay seals were found about 44 miles southwest of Jerusalem.Some of them have been identified as belonging to key Biblical figures,adding to the evidence that names in the Bible belonged to actual people.
Seals and Bulla