Apparently Photogravure has a large collection of images from Camera Work available to see on their site right now. This is the journal Stieglitz published back in 1903-1917, and has some great early images in it. (I dare @Christopher_Perez to not get lost in these for a while).
New York at Night
Haviland, Paul B., b.1880-1950
Camera Work XLVI, 1914
14.1 x 17.6
Photogravure
Road into the Valley - Moonrise
Steichen, Edward, b.1879-1973
Camera Work Steichen Supplement, 1906
16.4 x 20.5 cm
Hand-toned photogravure
New York (Wall Street)
Strand, Paul, b.1890-1976
Camera Work XLVIII, 1916
12.7 x 16.3 cm
Photogravure
Bernard Shaw
Coburn, Alvin Langdon, b.1882-1966
Camera Work XXI, 1908
21.1 x 16.4 cm
Photogravure
Harlech Castle
Davison, George, b.1854-1930
Camera Work XXVI, 1909
15.4 X 21.0 cm
Photogravure
There’s many more where these came from, and are all well worth a look from the masters of the craft in the early 20th century…
(via /r/photography on reddit)