Unknown artist, 18th century, Portrait of a unidentified man - Bernbault (?), Physionotrace, 5.7 x 4.8 cm (frame) 5.3 x 4.3 cm (image), Musée français de la Photographie, Inventory no: 89.7056.1, LL/42461

Unidentified photographer, n.d., Silhouette en noir d'un abbé, Daguerreotype, 1/6 plate, Interencheres - La Gallerie de Chartes, Collection Henry Koilski (Galerie de Chartres, Auction, 8 October 2011, Lot: 24), LL/44269

James McClees, 1857, William B. Wood, Daguerreotype, 10.6 x 13.8 cm (image), Historical Society of Pennsylvania, Record Number: 6125, Collection: Cased Photographs Collection [3139], LL/44549

Thomas Easterly, n.d., Unidentified young African American woman, profile view., Daguerreotype, Missouri Historical Society, Identifier: PHO:17332, http://collections.mohistory.org/photo/PHO:17332, LL/47651

Southworth & Hawes, 1853, Jonas Chickering, Daguerreotype, National Portrait Gallery, Smithsonian Institution, National Portrait Gallery, Smithsonian Institution (NPG.95.177), LL/35011

Allevy, 1856, Death Portrait of Doctor Amussat, Daguerreotype, 1/6 plate, George Eastman Museum, Gift of Eastman Kodak Company: ex-collection Gabriel Cromer, 76:0168:0004, LL/40639

Charles Reutlinger, n.d., Portrait of a lady, Carte de visite, Private collection of Andrea Cesari, LL/29448

Benjamin J. Falk, 1888, Anton Seidl, Hungarian Conductor, Cabinet card, Private collection of T. Max Hochstetler, LL/29074

Sarony, 1890 (ca), Napoleon Sarony (9 Mar 1821 - 9 Nov 1896), Photogravure, 20.8 cm x 14.9 cm (8 3/16 x 5 7/8), National Portrait Gallery, Smithsonian Institution, [NPG.77.313], LL/2056

Willoughby Wallace Hooper, 1870-1875, A portrait of an Afghan (India), Albumen print, 13.5 x 18 cm, Dennis George Crow, Courtesy of Dennis George Crow (www.dennisgeorgecrow.com), LL/10485

Augustus Francis Sherman, 1911, [Guadeloupean woman], Platinum print, 24 x 17.5 cm (image) 35 x 27.5 cm (mount), NYPL - New York Public Library, Manuscripts and Archives Division, William Williams papers / Photographs of immigrants, Image ID: 418039, LL/31782

William Saunders, 1870-1880, Studio Portrait of a seated Cantonese woman, Albumen print, 15 x 19.5 cm, Dennis George Crow, Courtesy of Dennis George Crow (www.dennisgeorgecrow.com), LL/10056

F. Holland Day, 1900-1910 (ca), Maynard White, Little Good Harbor, Maine, Cyanotype, 7 7/8 x 7 1/4 in, Lee Gallery, Courtesy of Lee Gallery (W2100), LL/13993

Edward S. Curtis, n.d., Little Hawk, [The North American Indian, Volume III], Photogravure, Swann Galleries - New York, LL/21766

Gertrude Käsebier, 1897 (ca), Flora, Platinum print, 6 1/4 x 4 in, Lee Gallery, Courtesy of Lee Gallery (S1434), LL/12956

Federico Mallmann, 1895, Portrait, [Photo-Club de Paris / 1895, Pl. XXXV], Photogravure, Antiq-Photo, Courtesy of Anthony Davis - Antiq-photo / Rainbow creations (www.19cPhoto.com), LL/9341

Cesare Mariannecci, 1860s (ca), Roman Portrait, Albumen print, 6 x 4 5/8, Charles Nes Photography LLC New York - Paris, LL/5897

Alfred Maskell, 1896, Jeune Hollandaise, [Photo-Club de Paris / 1896, Pl. XXVIII], Heliogravure / Photogravure, 14.3 x 11.0 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14356

Philipp Ritter Von Schoeller, 1897, Cécile, [Photo-Club de Paris / 1897, Pl. XXXIII], Heliogravure / Photogravure, 16.2 x 12.0 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14857

Emile Joachim Constant Puyo, 1897, Profil, [Photo-Club de Paris / 1897, Pl. XXXI], Heliogravure / Photogravure, 22.1 x 15.2 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14855

Gertrude Käsebier, 1904-1905, The Bride, Gum bichromate print, 24.0 x 19.3 cm (9 7/16 x 7 5/8 ins), Princeton University Art Museum, Gift of the Estate of Mina Turner, Object Number: x1976-322, LL/44580

Maurice Brémard, 1898, Studienkopf, [Die Kunst in der Photographie (Art Folio #5)], Photogravure-Chine-collé, 20.0 x 15.7 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/16441

Unidentified photographer, 1905-1915 (ca), [thoughtful lady], Real photo postcard, Private collection of Brian Smolens, LL/30521

Unidentified photographer, 1955 (before), Tennis Player Silhouette, Gelatin silver print, 2.75 in (6.98 cm) x 1.75 in (4.44 cm), Robert Tat Gallery, Courtesy of Robert Tat Fine Photographs (www.roberttat.com - #1119), LL/8989

Louis Auguste Bisson, n.d., Skulls from the Philippines and Mariannes (detail), Lithograph, detail, Christopher Wahren Fine Photographs, Christopher Wahren Fine Photographs - Auction (Skylight Gallery Catalog 28,April 30, 2009, #9), LL/32284

Nahum Ellan Luboshez, 1910 (ca), X-Ray of Skull, X-ray, 29.8 x 24.7 cm, Harry Ransom Humanities Research Center at the University of Texas at Austin, HRC, LL/6121

Southworth & Hawes, 1850s, Portrait d'un homme en haut-de-forme, Daguerreotype, 1/4 plate, Sotheby's - Paris, Photographies , 29 May 2013, Auction: PF1310, Lot: 22, LL/50895

Unidentified photographer, 1845-1855, Youth with Freckles, Daguerreotype, 1/4 plate, 10.3 x 7.7 cm (plate) 9 x 7.1 cm (sight), National Gallery of Canada / Musée des beaux-arts du Canada, Courtesy of the National Gallery of Canada (no. 30679), Gift of Phyllis Lambert, Montreal, 1988, LL/6684

William Edward Kilburn, n.d., Portrait of a gentleman (English), Daguerreotype, 1/6 plate, hand-tinted, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#13 / 12), LL/11234

Unidentified Daguerreotypist, 1857 (ca), George Allen, Daguerreotype, 1/6 plate, Historical Society of Pennsylvania, Record Number: 5605, Collection: Cased Photographs Collection [3139], LL/44531

Unidentified photographer (Boston ?), 1846 (ca), Maria Weston Chapman, Daguerreotype, 1/4 plate, Boston Public Library, Print Department, File name: 07_05_000009, Cab no.: Cab.G.3.29, LL/45529

Elliott & Fry, n.d., English author and poet Alfred Lord Tennyson (1809-1892), Carte de visite, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#13 / 47), LL/11256

Sarony, n.d., Lucca (Detail), Stereocard, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 360), LL/11776

Vasili Ulitin, 1930, Portrait, Moscow House of Photography, Moscow House Of Photography (¦. Golosovsky collection), LL/8335

André Adolphe-Eugène Disdéri, 1863, [Profile of the Prince Imperial], Albumen print, from glass plate negative, 25.1 x 18.3 cm (9 7/8 x 7 3/16 ins) (image) 28.2 x 20.5 cm (11 1/8 x 8 1/16 ins) (mount), Metropolitan Museum of Art, Gilman Collection, Gift of The Howard Gilman Foundation, 2005, Accession Number: 2005.100.242, LL/40352

Maurice Bucquet, 1894, Etude d'éclairage, [Photo-Club de Paris / 1894, Pl. XXXIV], Heliogravure / Photogravure, 16.5 x 11.8 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14095

Robert Pauli, 1895, Un Mayeur, [Photo-Club de Paris / 1895, Pl. XXXVII], Photogravure, Antiq-Photo, Courtesy of Anthony Davis - Antiq-photo / Rainbow creations (www.19cPhoto.com), LL/9343

Auguste Bert, 1897, Profil, [Photo-Club de Paris / 1897, Pl. VI], Heliogravure / Photogravure, 18.5 x 14.1 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/14829

Edward Steichen, 1906, Poster lady, Heliogravure, on Japan paper, 17.5 x 16 cm, Piasa, Photographies, 28 October 2011, Lot 23, LL/44424

J. Craig Annan, 1897, Portrait of a Lady, [Kodak Portfolio: Souvenir of the Eastman Photographic Exhibition 1897, a Collection of Kodak Film Pictures by Eminent Photographers, Pl. 10], Photogravure, 12.3 x 7.5 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/11619

Baron Adolph de Meyer, 1918-1921, Etude pour Vogue, Silver print, 24,2 x 19,2 cm (print 9 1/2 x 7 1/2 ins), Sotheby's - Paris, Photographies , 29 May 2013, Auction: PF1310, Lot: 67, LL/50900

Frances Benjamin Johnston, 1897, A Portrait, [Kodak Portfolio: Souvenir of the Eastman Photographic Exhibition 1897, a Collection of Kodak Film Pictures by Eminent Photographers, Pl. 12], Photogravure, 9.2 x 5.3 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/11623

Charles Berg, 1898, Portrait-Studie, [Die Kunst in der Photographie (Art Folio #1)], Photogravure, 15.0 x 11.5 cm, Photoseed, Photograph courtesy PhotoSeed.com, LL/16416

Gertrude Käsebier, 1905 (ca), Silhouette Portrait of a Boy Reading a Book, Gum print, 7 7/8 x 6 5/16 in, Lee Gallery, Image courtesy of the Lee Gallery (www.leegallery.com), LL/3307

Unidentified photographer, 1915 (ca), Wild Harry (Aboriginal man with elaborate hair ornament, Western Australia), [The Rose Series W. 7], Photo photcard, 130 x 86 mm, Oceania-Ethnographica, Courtesy of www.oceania-ethnographica.com (#1022Y), LL/14381

Walker Evans, 1933, Girl, Havana, Cuba, [Cuba], Gelatin silver print, 8 x 6 1/8 in, Lee Gallery, Courtesy of Lee Gallery (S2164), LL/14183

Consuelo Kanaga, 1948 (print) 2007 (publication), Young Girl in Profile, [An American Gallery], Book plate, Lumiere Press, Courtesy of Lumiere Press and Howard Greenberg Gallery, LL/27652

Steve Pyke (1957-), 1995, Keith Richards, Silver print, 15 3/4 x 16 ins (40 x 40.6 cm), Swann Galleries - New York, Courtesy of Swann Galleries (Auction, Dec 8-10, 2014, #2370, Lot 530), LL/57078

Louis Auguste Bisson, 1841-1842, Ancient Burial Place of Téa-Kaou (Panga´-Motou), Mangareva, Gambier Islands, Polynesia, Daguerreotype, 16.2 x 12.1 cm (6 3/8 x 4 3/4 ins), Musée de l'Homme, LL/39782

Unidentified radiographer, 1966, [Grenade embedded in forehead. Vietnam war], X-ray, National Museum of Health and Medicine, LL/31933