The Tank Mark III (1917) was derived from the Mark I with enhanced armor and modified sponsons.
Crusader tank - Wikipedia
/USSR/4-HeavyTanks/MkIV-Churchill/Churchill3/p1.jpg)
British Infantry Tank Mk.IV Churchill Mk.III
British Mark IV Male tank 'Lodestar III', The British Mark …
32555 CRUSADER MK.III TANK - Jr Junction Train & Hobby
Cruiser Mk III - Wikipedia
Tank Mark III
The successor to the A1E1, and my personal favorite tank, The Vickers A6 Medium Tank Mark III : r/TankPorn
Vickers Medium Tank Mk.III E1 (Original art by Hubert Cance)
Tank Mark III
Vickers Light Tanks Mark I/II/III
Vickers Light Tanks Mark I/II/III
Tank Mark III
Tank Mark III