The
George Grantham Bain Collection,
held by the US Library of Congress, represents the photographic files of one of America's earliest news picture agencies.
Available online are 39,744 glass negatives and a selection of about 1,600 photographic prints for which copy negatives exist.
Searching for windmill turns up nothing beyond an
ornamental Dutch windmill at a flower show,
but a wider search for "mill" brings up:
For a major national library, frankly their website interface is terrible - I have linked direct to images above, since it seems to
be impossible to link to the catalog entry for the images, since they do not have unique URLs.
The George Grantham Bain Collection
