The Panzer II or Panzerkampfwagen II or abbreviated to Pz.Kpfw.
II Sd.Kfz. 121 was intended to supplement forces equipped
with Panzer I's
The Panzer II was
more heavily armoured, and armed with a 2 cm KwK 30 the suspension
was very similar in construction to the Panzer I however,
this was the only similarity between. The Pz.Kpfw. II was
produced and manufactured by Alkett
German Military Vehicles.
Armoured Fighting Vehicles of Germany World War II.
Encyclopedia of German Tanks of World Two.
For a complete list of sources