I'm not good at I.D.ing the mediterranean species of tortoise, however, I THINK that the marginated has lighter coastal scutes, and more of a flare to the lower edge of the carapace. I'm guessing Hermann's. GBTortoises is very good at this I.D. game. I'll send him a PM.
Your tortoise is a Middle Eastern Greek subspecies, Testudo graeca ssp.. From the one photo, most likely an Antakyan Greek, or as some now prefer, either Ibera (middle range race) or Terrestris.
Welcome to the forum! I'll let the experts help with identifying your new pet. I'm glad your first priority is finding out what you have, because if you don't, how do you properly care for it? Enjoy your new friend.