In the original contract of 25 February 1916 it had been stipulated that all four hundred units would be delivered that same year: the first hundred by 25 August and the last by 25 November, completing the full order in nine months.
V pôvodnom kontrakte z 25. februára 1916 bolo stanovené, že všetkých 400 kusov bude dodaných v tom istom roku: prvá stovka do 25. augusta a posledná do 25. novembra, teda všetky vozidlá do 9 mesiacov.