How much were 650 francs in 1940's France in US dollars?

In the 1940s, the value of the French franc fluctuated due to the economic conditions of World War II and its aftermath. However, a rough estimate suggests that 650 francs in the early 1940s would be equivalent to approximately 100 to 150 US dollars at that time, depending on the specific year and the exchange rates. It's important to note that these values are not precise, as both currencies experienced significant inflation and devaluation during that period.