It appears like there may be some mold seams on the edges of the open hatches:
Also, a sprue attachment point that still shows on the side of the right "cover" on top of the turret (or is it a closed hatch?):
In the previous picture plus this one it appears that there may still be faint mold seams on the sides of the coaxial MG and the base of the main gun. Also, there appears to be an "edge" along the rectangular "shelf" below the gun mantlet that could be a mold seam, too:
The left lifting eye in the previous picture along with the right lifting eye in the picture below appear to have mold seams or mold shift on the top curved edges:
I could be wrong on any or all of the above, as looking at the model should tell the tale.
I hope this helps, sir.
AMPS Central SC "Wildcats"