Georgia O'Keeffe gave a large collection of Alfred Stieglitz's work to the National Gallery and Sara Greenough has assembled the photographs into a two volume set known as "The Key Set".
I bought a copy when it was published in 2002 and from time to time have gone through the first volume.
I've finally gotten around to going through the second volume.
Stieglitz was a World Class champion of photography and a World Class photographer himself. ( I don't want to get to far out of line with the Academy )
I am surprised by how many of his prints where quite MUDDY. I know, times and tools have changed but still.
What I come away with is a strong desire to make a date at the MFA H print room to look at all 27 ( at last count ) of their Stieglitz prints and perhaps most important, get to the darkroom and make some of my own slightly less muddy prints.
Here's a link to the Eastman press release that mentions the collection.
Eastman sponsored the exhibition and catalogue. It's well worth a look if you can find a copy. My guess is the MFA H library has one.