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offers download links for some videos, but it looks like not necessarily allall, not clear to me what distingusihes.
eg https://www.loc.gov/item/2020600739/
“Hesston Corp., 1969”
Open “Rights & Access” accordion: “The Library of Congress is not aware of any U.S. copyright or other restrictions in the vast majority of motion pictures in these collections. Absent any such restrictions, these materials are free to use and reuse… Rights assessment is your responsibility… The written permission of the copyright owners in materials not in the public domain is required for distribution, reproduction, or other use of protected items beyond that allowed by fair use or other statutory exemptions.”
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