What was the Douglas C-47 Skytrain carrying in the 1951 French crime film directed by Jacques Daniel-Norman?
Dakota 308:  The plot concerns a Dakota carrying a shipment of gold to  Brazzaville. Douglas C-47 Skytrain: The Douglas C-47 Skytrain or Dakota (RAF designation) is a military transport aircraft developed from the civilian Douglas DC-3 airliner.
a shipment of gold