I guess many people are aware of NARA - the US Archives. The volume of information stored there is immense and I recently came across
a section with movie clips of the US Army artillery in France. As an example - https://catalog.archives.gov/id/24911 (click on the film icon to view)
has 155mm Schneider howitzers and 155mm GPF guns being towed by 10- and 15-ton Holt tractors as well as clips of the guns being fired.
There are 807 films in the section where this one came from - https://catalog.archives.gov/id/24608
Regards,
Charlie
