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.
German Reich - Tank Encyclopedia
Tadeusz Pakula – Tank Encyclopedia
File:Sd Kfz 141-2 Panzerkampfwagen III Ausf N.jpg - Wikimedia Commons
Panzer III, World War II Wiki
The Panzerkampfwagen VI Tiger I heavy tank (1942)
Panzerbeobachtungswagen III - Tank Encyclopedia
Panzer II(F) is not historical (suprise suprise) - Mess Room - Enlisted
Panzer III Ausf.F. - Panzerkampfwagen III - walkaround - Saumur Tank Museum.
The Panzerkampfwagen III main battle tank (1937)
By the creator of Tank Encyclopedia