The rosette stamping, is a type of seal stamping that was made on jug handles, as part of the Judahn administrative system during the Kingdom of Judah, starting at the end of the 7th century BCE, and at the latest until the destruction of the First Temple at the beginning of the 6th century BCE. S. The imprint consists of a drawing of a flower that usually has eight or 12 petals, enclosed in a circle, and its diameter is usually 13-18 mm. The origin of the rosette symbol is probably from Assyria, and what it symbolized in Judah is not clear, but the prevailing explanation in the research is that the symbol represented the royal house. Most of the finds of the rosette seals were discovered in Jerusalem, followed by Ramat Rachel and the Shefala. Based on its typology, it appears that the use of the rosette seal continued for many years and that it was part of a complex administrative system.

Source and for further reading:

Lifshitz, p. (2018). The Age of Empires: History and Administration in Judah in the Light of Seal Imprints on Jars (from the 8th to the 2nd century BC). By Yitzhak Ben-Zvi. (especially pp. 82-90)