Alert! Βρέθηκε το κεφάλι της Σφίγγας στην Αμφίπολη
I'm going to guess that like the wing, it was found in an ancient context. So the break was not the result of modern looting as Christos Tsirogiannis of the MC has been telling people.
And the journalist who was taking photos for the dig is no longer posting them on her open Facebook page: https://www.facebook.com/annapanagiotarea