The treaty of Versailles, which was signed after WWI, restricted Germany in many ways, they were forced to pay off debts and keep a very small military. This led to the anger of Germany and other Axis aligned countries.
I haven't ever done that but I think it might be for Machine made I think it would be Harvesters and for Hand made I think it would be the first airplane I'm not sure what the first airplane is call tbh.
