Gilles, What is the identifying number on the photo?
As an example, here is a photo on fold3 (identified as 3A19291):
https://www.fold3.com/image/39011411...terms=toulouse
Here is the same photo in the National Archives:
https://catalog.archives.gov/id/204898068
Note in the description of the Archives version it says:
Access is Unrestricted and Use is Unrestricted.