If you take the Link from the display posted, you will find 2 earlier series of photographs.
This is truly an excellent presentation.
Many of these photos have been reproduced many times from reproductions of reproductions. The problem is that, depending upon your optics, film type, processing and a dozen other factors, there is a LOSS in detail with every generation removed from the original image.... which is a negative. Even with first-generation prints, there is a loss of detail. The lab worker has some control over this, but it is there, always.
One problem with many of these old photos is BLUR from motion; the materials they were using often were very 'slow' by modern standards. A film with an ASA sensitivity rating of 12 would be considered 'high-speed'; the standard for most modern films is 400 or faster. Having the photographer brace himself or having the camera tripod-mounted was a definite ''plus' although not always possible.
Another problem is that they were dealing with ORTHOCHROMATIC materials, so there is a colour-shift in the black-and-white images. Mud looks like mud, but RED turns to BLACK very easily in a print while BLUE does not register as deeply as we are accustomed to seeing it. This is especially evident in air photography and in ground photos where the sky can be seen. PANCHROMATIC film, which we are accustomed to viewing, did not appear on the open market until 1922.
Here, they have gone back to the original negatives or first-generation prints; some of the detail is excellent.
Before you ask: Yes, I still have my personal photography lab, equipped for Ortho and Pan B&W both.