William B. Dyer, 1904 (ca), Powers Hapgood, Platinum print, image: 19.1 x 14.9 cm (7 1/2 x 5 7/8 ins) mount: 30.5 x 23.4 cm (12 x 9 3/16 ins), Princeton University Art Museum, The William B. Dyer Collection, gift of Harriet Dyer Adams, Object Number: x1990-191, LL/44645

Heinrich Kühn, 1904, Portrait of the Kühn children, Pigment print, 9 1/4 x 11 3/4 ins (23.5 x 29.8 cm), Swann Galleries - New York, Important Photobooks & Photographs, May 19, 2011, Sale 2248 Lot: 146, LL/43857

Hugo Erfurth, 1906, Knabenbildnis in Landschaft Portrait of boy in landscape, Platinum / Oil print, 12.8 x 21.8 cm, Galerie Priska Pasquer, LL/1690

Frederick Hollyer, 1894, Millicent et Daniel, [Photo-Club de Paris / 1894, Pl. L], Heliogravure / Photogravure, 12.0 x 12.0 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14115

Allie Bramberg Bode, 1922, Mexican Boy, Platinum print, 9 1/8 x 7 in, Library of Congress, Prints and Photographs Division, Warren and Margot Coville Collection, Prints & Photographs Division, Library of Congress [LC-USZC4-9757], LL/15531

Clarence H. White, 1908, July, Portrait - Master Tom, [Camera Work, no. 23, pl. 07], Photogravure, 8.25 in (20.95 cm) x 6.25 in (15.88 cm), Robert Tat Gallery, Courtesy of Robert Tat Fine Photographs (www.roberttat.com - #644), LL/9015

Baron Albert de Rothschild, 1895, Portrait de mon petit Garcon, [Photo-Club de Paris / 1895, Pl. XXII], Photogravure, Antiq-Photo, Courtesy of Anthony Davis - Antiq-photo / Rainbow creations (www.19cPhoto.com), LL/9326

Philipp Ritter Von Schoeller, 1895, Pecheuse hollandaise, [Photo-Club de Paris / 1895, Pl. XLII], Photogravure, Antiq-Photo, Courtesy of Anthony Davis - Antiq-photo / Rainbow creations (www.19cPhoto.com), LL/9349

Philipp Ritter Von Schoeller, 1897, Cõcilie, [Die Kunst in der Photographie (Art Folio #1)], Photogravure-Chine-collé, 16.7 x 12.3 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/15655

J. Craig Annan, 1897, Child Portrait, [Kodak Portfolio: Souvenir of the Eastman Photographic Exhibition 1897, a Collection of Kodak Film Pictures by Eminent Photographers, Pl. 6], Photogravure, 8.5 x 7 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/11611

Hermann Widensohler (Stuttgart), 1900, Kinderkopf, [Die Kunst in der Photographie (Art Folio #1)], Photogravure, 18.8 x 14.7 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/18675

Aura Hertwig, 1900, Lotte, [Die Kunst in der Photographie (Art Folio #4)], Photogravure, 19.7 x 15.7 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/18689

Aura Hertwig, 1900, Melancholie, [Die Kunst in der Photographie (Art Folio #4)], Photogravure, 19.5 x 15.5 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/18691

J. Craig Annan, 1895, A Little Princess, [The Photographic Salon - 1895 (London) Pl. 12], Photogravure, 20 x 10.5 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/10797

Walter L. Colls, 1895, Simplicity, [The Photographic Salon - 1895 (London) Pl. 17], Photogravure, 13.9 x 8.5 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/10801

Walter Welford, 1897, Dans les fleurs, [Photo-Club de Paris / 1897, Pl. XXXVIII], Heliogravure / Photogravure, 18.2 x 11.9 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14862

Alexis Mazourine, 1898, Tanz Russischer Bauernjungen, [Die Kunst in der Photographie (Art Folio #4)], Photogravure-Chine-collé, 16.6 x 22.6 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/16434

Walter B. Welford, 1896, Les uns perdent, les autres gagnent!, [Photo-Club de Paris / 1896, Pl. XLII], Heliogravure / Photogravure, 10.2 x 20.1 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14371

Herbert Arthur Hess (Philadelphia), 1901, In Arkadien, [Die Kunst in der Photographie (Art Folio #6)], Photogravure, Chine-collé, 9.7 x 15.8 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/20672

Anne Brigman, 1912, The Wonderous Globe, [Camera Work, no. 38, pl. 04], Photogravure, 4 3/4 x 7 13/16 in, Lee Gallery, Image courtesy of the Lee Gallery (www.leegallery.com), LL/3168

Alfred Stieglitz, 1894 (taken), 1897 (print), The Letter Box, [Picturesque Bits of New York and Other Studies], Photogravure, 7 3/4 x 5 3/4 in, Lee Gallery, Courtesy of Lee Gallery (U1369), LL/14151

Rudolf Eickemeyer, 1901, Caught in Mischief, [Die Kunst in der Photographie (Art Folio #5)], Photogravure, Chine-collé, 23.0 x 18.2 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/20667

Clarence. B. Moore, 1895, Fleurs d'oranger, [Photo-Club de Paris / 1895, Pl. LVII], Photogravure, Antiq-Photo, Courtesy of Anthony Davis - Antiq-photo / Rainbow creations (www.19cPhoto.com), LL/9366

Rudolf Eickemeyer, 1901, A Japanese Fancy, [Die Kunst in der Photographie], Photogravure, 200 x 160 mm 7.75 x 6.25 in, Antiq-Photo, Courtesy of Anthony Davis - Antiq-photo / Rainbow creations (www.19cPhoto.com - 5un181), LL/8136

Clarence H. White, 1899, The Ring Toss, Gum bichromate print, 18 x 13.9 cm (7 1/16 x 5 1/2 in), Metropolitan Museum of Art, Alfred Stieglitz Collection, 1933 (33.43.303), LL/6334

Clarence H. White, 1904, Boys Going to School, Photogravure, 8 1/16 x 6 3/16 ins (20.48 x 15.72 cm), Milwaukee Art Museum, Gift of Douglas C. James in honor of the 100th birthday of his cousin, George F. Kennan M2004.356, LL/46082

Clarence H. White, 1905, Boy with Camera Work, [Camera Work, no. 09, pl. 04], Photogravure, 8 x 10, Peter Fetterman Gallery, LL/572