the really important artifact(s) from the synagogue at dura europos is(are)
Dura-Europos synagogue The Dura-Europos synagogue (or "Dura Europas", "Dura Europos" etc.) is an ancient synagogue uncovered at Dura-Europos, Syria, in 1932. The last phase of construction was dated by an Aramaic inscription to 244 CE, making it one of the oldest synagogues in the world. It is unique among the many ancient synagogues that have emerged from archaeological digs as the structure was preserved virtually intact, and it had extensive figurative wall-paintings, which came as a considerable surprise to scholars. These paintings are now displayed in the National Museum of Damascus.
Star of David The hexagram does appear occasionally in Jewish contexts since antiquity, apparently as a decorative motif. For example, in Israel, there is a stone bearing a hexagram from the arch of a 3rdâ€“4th century synagogue in the Galilee.[10] Originally, the hexagram may have been employed as an architectural ornament on synagogues, as it is, for example, on the cathedrals of Brandenburg and Stendal, and on the Marktkirche at Hanover. A hexagram in this form is found on the ancient synagogue at Capernaum. In the synagogues, perhaps, it was associated with the mezuzah.