Roman 3rd Century coin [Risolto]

Hello I have got this Roman coin from a fleamarket but can't identify it or the emperor on it (it seems to be a quite young one so maybe Severus Alexander, Elagabalus or one of the Gordians?) .
On one side there is possibly a flower or a Jewish symbol? The diameter of the coin is ca. 18-19mm
Any help in identifying the emperor or the coin is very welcome!

Hello,

It's Tetricus II, with PIETAS on reverse. See here and compare :
http://www.wildwinds.com/coins/ric/tetricus_II/t.html

Ah thank you very much, so this one looks quite close to be the one I'am looking for. https://en.numista.com/catalogue/pieces37696.html and would be my first coin of the gallic empire :)

You're welcome. You won't have any small copper radiate coin for Elagabal or Alexander Severus. The antoninianii were still of good silver content at that time. Antoninianii are still, at least, silver-looking
With the Gallic empire, the silver content fell down from 50% in 220, to 25% in 250, to almost nothing between 260 and 285.
You can see here that your coin has almost no silver in it, it's probably 95% copper. Coins like this are mainly from the Gallic empire (often Tetricus I or II or Victorinus) but can also be from Gallienus. After the fall of the Gallic empire and with Aurelian, the coins changed, with a fixed silver content in it, and silvered. Some call them still antoninianii but the word aureliani is also used.