Really need the weight and size of these tetradrachms. As well as an edge view.
Here is a first guess:
PTOLEMAIC EGYPT. Ptolemy II Philadelphus (285/4-246 BC). AR tetradrachm . Alexandria. Diademed head of Ptolemy I right, wearing aegis around neck; bankers marks in right field / ΠTOΛEMAIOY-BAΣIΛEΩΣ, eagle with closed wings standing left on thunderbolt; Σ monogram to left, Svoronos 548.HID05401242017
From the photograph, it seems to show some signs of casting, but it is hard to tell. A good picture, along with the measurements will be important in making a determination. Something I can see immediately is that the radial cracks appear to be filled, which occurs in casting, but this might just be due to the picture.
Thanks thus far, I went ahead and bought it based on no one calling it an outright fake and will post dimensions and weight when received along with more pictures. It was from an Ebay seller whose description is consistent and appears to specialize in ancients with good feedback and has a authenticity guarantee. Here is the original listing.