Exchange rates of major currencies at that time:

The approximate exchange rate of 1939 is in US dollars, and the price of an ounce (3 1. 1035g) of gold is 35 dollars.

The exchange rate of the Imperial Mark against the US dollar: 2.5: 1

Exchange rate of GBP against USD:

0.25: 1

French franc to US dollar: 5: 1

Lira against USD: 18 ~ 20: 1

Yen against USD: 4.3:1(1940) 2:1(1920).

8: 1 (financial crisis)

French dollar: 4. 15: 1 (before the war) 20: 1 (1942)