Photos of two Solido 222 Tiger I models (1 and 23) and two Verem models (S33 and 528).
A great example of a mid/late model Tiger I with steel wheels:
Left photo - notice the different barrel castings: on the left model part of the muzzle break is gone due to wear of the barrel die.
Right photo - showing the difference between the early undercarriage casting without centre screw hole and the later casting with centre screw hole.