The Panzer III Ausf.F succeeded the Ausf.E as the next version of the Panzer III and was essentially a refined version of its predecessor.
Panzerkampfwagen III Ausf.B (Sd.Kfz.141) - Tank Encyclopedia
Panzerkampfwagen III Ausf.B (Sd.Kfz.141) - Tank Encyclopedia
The Panzerkampfwagen VI Tiger I heavy tank (1942)
WW2 German Prototypes Archives - Tank Encyclopedia
Panzerkampfwagen III Ausf.D (Sd.Kfz.141) - Tank Encyclopedia
Panzerkampfwagen III Ausf.C (Sd.Kfz.141) - Tank Encyclopedia
WW2 German Flamethrowers Archives - Tank Encyclopedia
Panzer III Ausf. E Sd.Kfz. 141
Panzerkampfwagen III Ausf.E (Sd.Kfz.141) - Tank Encyclopedia
Panzerkampfwagen III Ausf.B (Sd.Kfz.141) - Tank Encyclopedia
Panzerkampfwagen III Ausf.A (Sd.Kfz.141) - Tank Encyclopedia
Panzerkampfwagen III Ausf. A (Sd.Kfz. 141)
Panzer III - Wikiwand
The Panzerkampfwagen III main battle tank (1937)