The Panzer I was the first German tank to go into mass production, with nearly 600 ordered by July 1934. Three separate companies engaged to build the tank (deliberately undertaken to spread experience of tank manufacture as widely as possible) and over 800 had been produced by June 1936, when production ceased. To avoid being seen to break the Treaty of Versailles, which prohibited the Germans from building tanks, the design was disguised as an 'agricultural tractor.' The Panzer I Ausf. A and B were found in varying numbers in all panzer units and served extensively during the early campaigns of World War II. Its limitations in armament and armour were soon evident, and it was eventually withdrawn from frontline service by 1941. Many were employed as training tanks while others were eventually converted into other types of vehicles that could still prove useful to the Wehrmacht. Sold Out!