Henry Fox Talbot, 1844 (published), The Bridge of Orleans, [The Pencil of Nature, Part 2, pl. 12], Calotype, Hans P. Kraus, Jr., Inc., Taken from the reproductions in Larry J. Schaaf, H. Fox Talbot's The Pencil of Nature; Anniversary Facsimile (New York: Hans P. Kraus, Jr. Inc., 1989). The originals selected for this publication were the best single examples available for each plate. Not to be reproduced without permission of H.P. Kraus, Jr., LL/18329

Charles Clifford, 1870 (ca), Devil's Bridge [Spain], Albumen print, 29.7 x 43.7 cm, Harry Ransom Humanities Research Center at the University of Texas at Austin, HRC (979:0091:0001-0150), LL/6108

Kazumasa Ogawa, 1890 (ca), The Sacred Bridge, Nikko, Albumen print, hand-tinted, 21.5 x 27.3 cm, Bachmann Eckenstein Art & Antiques, LL/6467

Francis Bedford, 1870s, Colwyn Bay. Rustic Bridge in the Wood, Albumen silver print, Metropolitan Museum of Art, The Elisha Whittelsey Collection, The Elisha Whittelsey Fund, 1972, Accession Number: 1972.567.1, LL/50948

Unknown (Japanese), 1912-1918 (ca), Untitled, [Japan], Picture postcard, Private collection of Rob Oechsle, LL/26868

Albert Renger-Patzsch, 1940 (ca), Woman Crossing Bridge, Gelatin silver print, 6 3/8 x 7 3/4, Barry Singer Gallery, LL/2934

Carlo Naya, 1877 (ca), Venice - Ponte dei Sospiri, Albumen print, 7 3/8 x 9 3/8 in / ca 187 x 240 mm (ca), Eastern Window (Jan van der Wal), Courtesy of Jan van der Wal (it21-05), LL/15013

Renate Scherra, 1982, Venice 15, [Venice], Gelatin silver print, toned, 12 x 16 in, OMC Gallery for Contemporary Art, LL/26421

Carlo Naya, 1870s, Venezia. Canale di Canonica, Albumen print, 7 1/2 x 9 1/2, Charles Nes Photography LLC New York - Paris, LL/5814

Gabriel Blaise, 1873, Pont sur La Loire à Langeais, Private collection of Jan Weijers (Servatius), LL/29085

Boehl & Koenig , 1873, August (earlier), (St. Louis, Missouri), Stereoview, detail, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. August 29th & Thurs. August 31st, 2006, # 06-3, Lot 705), LL/13873

Boehl & Koenig , 1873, August, #80 General View of Bridge (St. Louis, Missouri), Stereoview, detail, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. August 29th & Thurs. August 31st, 2006, # 06-3, Lot 704), LL/13872

Boehl & Koenig , 1874, January, #98 View of Bridge in Construction (St. Louis, Missouri), Stereoview, detail, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. August 29th & Thurs. August 31st, 2006, # 06-3, Lot 703), LL/13871

Francis Bedford, n.d., 2409. Clifton - Suspension Bridge from Salvator Rosa Valley, [Clifton Illustrated], Stereocard, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#14 / 348), LL/11209

John Fergus, 1889, 9 July, Cantilevers Complete, Photogravure, J. Paul Getty Museum, The J. Paul Getty Trust (84.XB.874.3.1.34), LL/7369

George Washington Wilson, 1888, The Forth Bridge During Construction, Albumen print, 14.1 x 21.9 cm, Harry Ransom Humanities Research Center at the University of Texas at Austin, HRC, LL/6144

Southworth & Hawes, 1855, Mar 8, The Niagara Suspension Bridge, Daguerreotype, full plate, 21.5 x 16.5 cm, George Eastman Museum, © 2004 George Eastman House, LL/6405

Carleton E. Watkins, 1868-1870, Trestle on Central Pacific Railroad, Albumen print, 8 1/16 x 12 3/8 in, J. Paul Getty Museum, The J. Paul Getty Trust, Gift in memory of Leona Naef Merrill and in honor of her sister, Gladys Porterfield (94.XA.113.26), LL/7353

Adolphe Braun, 1875 (ca), Gotthardbahn, Albumen print, 9 x 11 in, Private collection of Steven Evans, Courtesy of Stephen Evans Vintage Photography (www.se-photo.com, #500), LL/9479

A.J. Russell, 1864, July, New Bridge over Potomac River. On the Washington, Alexandria and Georgetown Railroad. Total length 5,104 feet, Albumen print, 8 1/16 x 13 in, J. Paul Getty Museum, The J. Paul Getty Trust (85.XM.6.12), LL/7705

V. Pont, 1870 (ca), Telwa Bridge E.I.R. Accident, India, Albumen print, 9.25 in (23.49 cm) x 11 in (27.94 cm), Antiq-Photo, Courtesy of Anthony Davis - Antiq-photo / Rainbow creations (www.19cPhoto.com - 3in644), LL/8610

William Henry Jackson, n.d., The Old Acqueduct at Queretaro, Albumen print, Boudoir card, Jeffrey Kraus Antique Photographics, Courtesy of Jeffrey Kraus (Trainbd2), LL/10942

E. & H.T. Anthony & Co., n.d., Pontoon Bridge on the James River, Richmond, Va., Stereocard, Stereoviews: Stereoviews and Fine 19th & 20th Century Antique Photographs, Courtesy of David Spahr (www.stereoviews.com), LL/11642

L.P. Vallee, n.d., No. 19.- Victoria Bridge, Montreal, Stereocard, Stereoviews: Stereoviews and Fine 19th & 20th Century Antique Photographs, Courtesy of David Spahr (www.stereoviews.com), LL/11667

Keystone View Company, n.d., 29642 the Transporter Bridge and Entrance to Old Harbor, Marseilles, France, Stereocard, Stereoviews: Stereoviews and Fine 19th & 20th Century Antique Photographs, Courtesy of David Spahr (www.stereoviews.com), LL/11671

Eugenio Courret, n.d., [Untitled, A Bridge], [Vistas del Peru], Stereocard, Stereoviews: Stereoviews and Fine 19th & 20th Century Antique Photographs, Courtesy of David Spahr (www.stereoviews.com), LL/11691

Jackson Bros., n.d., #192 Dale Creek Bridge, [Scenery of the Union Pacific Railroad], Stereocard, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 198), LL/11726

Jackson Bros., n.d., #192 Dale Creek Bridge (Detail), [Scenery of the Union Pacific Railroad], Stereocard, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 198), LL/11727

Kilburn Brothers, n.d., 4054. the Pride of New York, Stereocard, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#14 / 280), LL/11192

Platt D. Babbitt, n.d., Suspension Bridge over Niagara River, Glass stereo view, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#14 / 295), LL/11196

Platt D. Babbitt, n.d., Suspension Bridge over Niagara River, Glass stereo view, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#14 / 296), LL/11197

William England, n.d., No. 150 - the Niagara Suspension Bridge, U. S., [North American Series by William England], Stereocard, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#13 / 308), LL/11295

William England, n.d., No. 42 - High Bridge over the Genesse River, [North American Series by William England], Stereocard, Stereographica - Antique Photographica, Courtesy of Bryan and Page Ginns (#13 / 310), LL/11296

Édouard Baldus, 1856 (ca), Le Viaduct de Chaumont, Salt print, paper negative, 10 3/4 x 16 5/8 in, Lee Gallery, Courtesy of Lee Gallery (V1453), LL/12931

J. Duclos, 1862 (ca), Bridge under construction on the Loire, Albumen print, 9.75 x 13.5 in (25 x 35 cm), Christopher Wahren Fine Photographs, LL/19976

Adolphe Braun, 1871, Asnieres, chemin de fer [Asnieres, the railway], [Paris - 1871], Albumen print, 7.4 in x 6.3 in (189 mm x 159 mm), Paul Frecker, Courtesy of Paul Frecker, LL/17208

Édouard Baldus, 1860s (ca), Pont de la Mulatiere, [Chemins de fer de Paris à Lyon et à la Méditerranée], Albumen print, 9 1/16 x 16 3/4 in, Lee Gallery, Courtesy of Lee Gallery (V1060), LL/12625

Édouard Baldus, 1860s (ca), Lyon. Viaduct du Rhone, [Chemins de fer de Paris à Lyon et à la Méditerranée], Albumen print, 10 7/8 x 17 5/16 in, Lee Gallery, Courtesy of Lee Gallery (V1061), LL/12930

Édouard Baldus, 1860s (ca), Tarascon Viaduct, Albumen print, 10 1/2 x 17 in, Lee Gallery, LL/22071

, n.d., Z1195 - Lee Gallery, Lee Gallery, LL/22089

, n.d., Z1196 - Lee Gallery, Lee Gallery, LL/22090

Édouard Baldus, 1861, La Voulte, Albumen print, two part, 33 x 10 1/2 in (21 in), Lee Gallery, Courtesy of Lee Gallery (Z1200), LL/22074

Édouard Baldus, 1860 (ca), Gisors, Viaduc, [Chemins de fer de Paris à Lyon et à la Méditerranée], Albumen print, 9 5/8 x 15 3/4 in, Lee Gallery, Courtesy of Lee Gallery (ZZ1294), LL/22079

Elmer L. Foote, 1900-1915 (ca), Bridge Under Construction, Lantern slide, hand-tinted, Kentucky Virtual Library, Lexington Public Library, Elmer L. Foote Lantern Slide Collection, ca. 1900-1915 (kyl:foote:0097), LL/7962

Unidentified photographer / artist, n.d., Porto - Ponte D. Luiz 1 (vista de noite), Picture postcard, Private collection of Alan Griffiths, LL/9570

Alvin Langdon Coburn, 1910 (ca), Williamsburg Bridge, [New York], Photogravure, 7 1/2 x 6 in, Lee Gallery, Courtesy of Lee Gallery (o918.2), LL/13239

Alvin Langdon Coburn, 1910 (ca), Brooklyn Bridge, From a Roof Top, [New York], Photogravure, Lee Gallery, Courtesy of Lee Gallery (o916.4), LL/13237

Alvin Langdon Coburn, 1913, The Unfinished Bridge, [New York], Photogravure, Private collection, Mark Katzman, photogravure.com, LL/13751

Alvin Langdon Coburn, 1910, The Tower Bridge, [London], Photogravure, 16.5 x 21.2 cm, Private collection, LL/13762

Robert Demachy, 1900, Les Pont des Arts, Gum dichromate print, 7 x 9, Lee Gallery, LL/21281

Cec Bown, 2001, Ironbridge, Bromoil print, 10 x 8 in, Provided by the artist - Cec Bown, LL/13894

Alvin Langdon Coburn, 1910, Paddington Canal, [London], Photogravure, 17 x 21.3 cm, Private collection, LL/13763

George Zimbel, 1954, George Washington Bridge, NYC, Gelatin silver print, Stephen Bulger Gallery, © George S. Zimbel, 2007, LL/2236

Tom Baril, 1993, Manhattan Bridge, New York, Photogravure, 37.3 x 28.2 cm (15 x 11 ), Galerie Johannes Faber, LL/1858

Tom Baril, n.d., Verrazzano Bridge, Photogravure, Hand-pulled, 21st Editions, LL/869

Alfred Eisenstaedt, 1983, Brooklyn Bridge from Alfred Eisenstaedt's Brooklyn Bridge a LIFE portfolio, Gelatin silver print, 10 x 14 1/2 in a 16 x 20 mat, Afterimage Gallery, LL/1411

Barbara Mensch, 1998, November, Storm Sky Over the East River, [New York], Gelatin silver print, sepia-toned, Provided by the artist - Barbara Mensch, LL/19167

Alvin Langdon Coburn, 1910, London Bridge, [London], Photogravure, 16.8 x 20.7 cm, Private collection, LL/13772

Imre Kinszki, 1929, November, Elisabeth Bridge, Gelatin silver print, 90 x 59 mm, Vintage Galéria, LL/18986

Tom Baril, 1995, Golden Gate Bridge, Gelatin silver print, toned, Staton Greenberg Gallery (CLOSED), LL/5932

Peter Stackpole, 1936, South Tower Golden Gate Bridge, Gelatin silver print, 9 11/16 x 6 3/16, Barry Singer Gallery, LL/2999

Julius Shulman, 1935, Bay Bridge, Gelatin silver print, h: 3.4 x w: 2.1 in / h: 8.6 x w: 5.3 cm, Craig Krull Gallery, LL/8373

Berenice Abbott, 1936, George Washington Bridge from Riverside Drive at 178th Street, Gelatin silver print, 27 3/4 x 14 1/8, Lee Gallery, LL/21260

William D. Richardson, 1920s (ca), Brooklyn Bridge, [New York], Gelatin silver print, matte, 16 x 20 in, Gitterman Gallery, LL/17012

Ralph Steiner, 1929 (ca), The Bridge, Gelatin silver print, 9 7/8 x 7 3/4 in, Lee Gallery, Image courtesy of the Lee Gallery (www.leegallery.com), LL/3305

Sheila Metzner, n.d., Untitled, Photogravure, Hand-pulled, 21st Editions, LL/796

Alvin Langdon Coburn, 1899-1909, London. Bridge over the Thames and St. Paul's Cathedral, Photogravure, 18.9 x 17.3 cm; image: 17.7 x 16.4 cm, National Gallery of Canada / Musée des beaux-arts du Canada, Courtesy of the National Gallery of Canada (no. 21465), Purchased 1971, LL/6725

Eugène Atget, 1911, Pont des St-Peres-Port Royal, Paris, Albumen print, Lee Gallery, LL/21263

Barbara Mensch, 2002, Williamsburg Bridge, Gelatin silver print, toned, 30 x 30, Bonni Benrubi Gallery, LL/3566

William D. Richardson, 1920s (ca), Brooklyn Bridge, [New York], Gelatin silver print, matte, 16 x 20 in, Gitterman Gallery, LL/17013

Unidentified photographer, 1885-1890 (ca), Cairns railway, Queensland, Australia, Albumen print, 9,5 x 7,5 in (ca), Eastern Window (Jan van der Wal), Courtesy of Jan van der Wal (au14-02), LL/15008

Alfred Hart, n.d., 163. Frame for Snow Covering, interior view, [Central Pacific Railroad. California], Stereocard, Jeffrey Kraus Antique Photographics, Courtesy of Jeffrey Kraus (HART30), LL/10981

Joseph P. Babbitt, 1869, Engineers and Surveyors on the Kansas City Bridge; Interior of Fixed Span Looking North, Albumen print, 8 x 10 in, Charles Schwartz Ltd, Charles Schwartz Ltd. (#6253), LL/10768

Michael Kenna, 1983, Hungerford Railway Bridge, London, England, Gelatin silver print, 6 x 9 1/2 in a 20 x 16 mat, Afterimage Gallery, LL/1449

Walker Evans, 1929 (taken) 1940s-1950s (ca, print), Brooklyn Bridge, Gelatin silver print, 6 1/2 x 4 1/2, Lee Gallery, LL/21285

Southworth & Hawes, 1856, The Niagara Suspension Bridge, Daguerreotype, full plate, 21.5 x 16.5 cm, George Eastman Museum, © 2004 George Eastman House, LL/6404

Charles Page, 1974, Image 37 - Parwan Viaduct, Victoria, Australia, [Night Shift], Gelatin silver print, Fibre base, 20 x 24 in, Provided by the artist - Charles Page, LL/22264

Alan Ross, 1989, Golden Gate Bridge North Tower And Rocks, Gelatin silver print, 16 x 20, Andrew Smith Gallery, LL/2548

Édouard Baldus, 1861, Roquefavour, [Chemins de fer de Paris à Lyon et à la Méditerranée], Albumen print, 12 3/4 x 16 3/8 in, Lee Gallery, Courtesy of Lee Gallery (ZZ1296), LL/22080

P. Sauvanaud, 1884 (ca), Asturias. Steel Bridge. Railways of Asturias, Galicia y Leon, Albumen paper, 280 x 395 mm, Biblioteca Nacional de Espańa, Sig. 17-060-007, LL/7520

Peter Liepke, 2005, Manhattan Bridge At Sunset, [New York City], Gum bichromate over Platinum Palladium print, 3 color, 10 x 8 in, Provided by the artist - Peter Liepke, © Peter Liepke - Courtesy of the artist, LL/19928

Eugene De Salignac, 1908, Manhattan Bridge Tower Looking West from Washington Street, Gelatin silver Exhibition print, 11 x 14, Klotz / Sirmon Gallery (CLOSED), LL/3400

Frank Bird Masters, n.d., Untitled, [Railway studies], Cyanotype, Northern Light Gallery, LL/24392

Barbara Mensch, 1997, November, A Walk Across the Bridge, [New York], Gelatin silver print, sepia-toned, Provided by the artist - Barbara Mensch, LL/19170

, 1998, Brooklyn Bridge, Gelatin silver print, 11 x 11 in a 22 x 18, Afterimage Gallery, LL/1412

Berenice Abbott, 1936, Floating Oyster Houses, New York, Gelatin silver print, 11 x 14, HackelBury Fine Art Ltd, LL/1546

William Dassonville, 1937 (ca), (Golden Gate Bridge in the Fog), Gelatin silver print, 4 9/16 x 3 9/16, Barry Singer Gallery, LL/2798

Brett Weston, 1946, Manhattan Bridge, Silver print, 9 1/2x7 1/2 in (24.1 x 19.05 cm), Swann Galleries - New York, Courtesy of Swann Galleries (Auction, Oct 15, 2007, #2124, Lot 117), LL/23179

Eugene De Salignac, 1908, Manhattan Bridge Construction, Gelatin silver Exhibition print, 8 x 10, Klotz / Sirmon Gallery (CLOSED), LL/3399

Eugene De Salignac, 1911, Queensborough Bridge Construction, Gelatin silver Exhibition print, 8 x 10, Klotz / Sirmon Gallery (CLOSED), LL/3398

Eugene De Salignac, 1908, Queensborough Bridge Construction, Gelatin silver Exhibition print, 8 x 10, Klotz / Sirmon Gallery (CLOSED), LL/3408

Eugene De Salignac, 1914, Brooklyn Bridge Painters, Gelatin silver Exhibition print, 11 x 14, Klotz / Sirmon Gallery (CLOSED), LL/3409

Peter Fink, n.d., Brooklyn Bridge, New York, Gelatin silver print, 7.5 x 9, Staley+Wise Gallery, LL/5601

Barbara Mensch, n.d., After A Storm (Over the East River), [New York], Gelatin silver print, sepia-toned, Provided by the artist - Barbara Mensch, LL/19168

George Barker, 1895, Samuel John Dixon Crossing Niagara Falls Below the Great Cantilever Bridge, Albumen prints, stereoscopic, 8.10 x 7.70 cm, National Galleries of Scotland, Courtesy of the National Galleries of Scotland (Accession no. PGP R 860), Gift of Mrs. Riddell in memory of Peter Fletcher Riddell 1985, LL/6822

Edward Steichen, 1931, George Washington Bridge, New York, Gelatin silver print, 11 x 14, Staley+Wise Gallery, LL/5567

Bill Schwab, 1998, Casino Bridge, Night Study #1, Belle Isle, Detroit, Mi, Barry Singer Gallery, LL/2856

Peter Stackpole, 1934-1936 (ca), San Francisco waterfront viewed through a cable saddle on Tower W3, San Francisco Bay Bridge, Gelatin silver print, 3 11/16 x 5 9/16, Barry Singer Gallery, LL/3000

Horace Bristol, 1933 (taken later print), 6th Street Bridge, Man with Hat, Gelatin silver print, 14 x 11 in, OMC Gallery for Contemporary Art, LL/23875

Susan Burnstine, 2006, Bridge to Nowhere, [On Waking Dreams], Archival Pigment, hand varnished, 12 x 12 in / 16 x 16 in, Wall Space Gallery, LL/28071

II Hong, 1998, The Column, Australian Centre for Photography, LL/4997

Doug Aitkin, 2005, Distant sign, C-print, 48 x 60 1/2 in, 303 Gallery, Courtesy of 303 Gallery (New York), LL/23549

Michael Levin, n.d., Le Pont, [Reveal], Watermark Fine Art Photographs & Books (CLOSED), LL/23126