Sela - Simeon bar Kosevah

Bar Kokhba's silver selas were struck over existing Roman provincial coins — predominantly tetradrachms of Antioch — because the rebels had no silver of their own to smelt. The host coins are frequently visible in the fields and on the edges of surviving examples, making them inadvertent two-layer documents of both Roman administration and Jewish revolt. This overstrike practice was not sloppy improvisation; it was the only viable option for a rebel state fighting its third year against Hadrian's legions.

The revolt collapsed in 135 AD with the fall of Betar, after which Hadrian banned Jews from Jerusalem entirely and renamed the province Syria Palaestina.