Solved TGF-151: Ford 1934 Truck, Hollywood Caravan to Spain.

[targhediferro]

Very easy to identify this vehicle, but I want to know in which tour it has been used, and the name of the girl at the wheel.

[ropat53]

Riette Kahn at the wheel of an ambulance donated by the American movie industry to the Spanish government in Los Angeles, California, on Sept. 18, 1937. The Hollywood Caravan to Spain will first tour the U.S. to raise funds to "help the defenders of Spanish democracy" in the Spanish Civil War.
Truck is 1932/34 Ford

[targhediferro]

Of course right!