Unidentified photographer / artist, 1859, 14 April, Patent registration: Photographic Portable Dark Operating Tent - W.W. Rouch, Magazine page, Google Books, LL/34928

Unidentified photographer / artist, 1856, Tent for working collodion in the open air, Book illustration, Google Books, LL/34638

Unidentified photographer / artist, 1856, A dark tent packed, Catalogue illustration, Google Books, LL/34639

1857, Portable Tent, for working collodion in open country, Advert, Google Books, LL/35540

Unidentified photographer / artist, 1861, Figure 14. (Dark tent), Book illustration, Google Books, LL/34844

1863, December, Fig. 25 - Boite de voyage en operation, Magazine illustration, Private collection of Jan Weijers (Servatius), LL/34943

1863, December, Fig. 24 - Station a la campagne, Magazine illustration, Private collection of Jan Weijers (Servatius), LL/34944

Unidentified photographer / artist, 1863, 15 December, Dark tent designed by Mr. Smartt - British Army, Magazine page, Google Books, LL/35168

Unidentified photographer / artist, 1867, Tent - Dictionary entry, Book illustration, Google Books, LL/34935

Unidentified photographer / artist, 1868, Travelling box, Book illustration, Google Books, LL/34516

Unidentified photographer / artist, 1868, Smartt's tent, made by Murray & Heath, Book page, Google Books, LL/34929

Walter B. Woodbury, 1861, 15 February, Walter Bentley Woodbury on Smart's tent, Magazine page, Private collection, LL/38871

Unidentified photographer / artist, 1864, 3150. Rouch, W.W. - this exhibitor sends a series of valuable apparatus and chemicals, Magazine page, Google Books, LL/34924

Unidentified photographer / artist, 1873, Portable darkroom (open and closed), Book illustration, Google Books, LL/34523

Unidentified photographer / artist, 1873, Photographer at work, Book illustration, Google Books, LL/34524

Unidentified photographer / artist, 1878, A Dark Tent, Book illustration, Google Books, LL/34550

John Burke, n.d., Fixing the Negative - The End of the Afghan War - Photographing the Ameer Yakoob Khan at Gandamak, Magazine illustration, Provided by the artist - Edward Grazda, LL/34755

Unidentified photographer / artist, 1871, Dark tent - from Rouch, in London, Book illustration, Google Books, LL/34880

Unidentified photographer / artist, 1871, Dark tent - invented by L. Herzog, in Bremen, Book illustration, Google Books, LL/34881

Unidentified photographer / artist, 1872, A Very Simple Dark-Tent, Magazine page, Google Books, LL/34925

Unidentified photographer / artist, 1878, Exchange Column: A dark tent, Rouch's pattern, Magazine page, Google Books, LL/34926

Unidentified photographer / artist, 1880, A Dark Tent for Dry-Palte Work. By W.W. Rouch and Co., Magazine page, Google Books, LL/34927

Unidentified photographer / artist, 1884, Fig.31 - Appareil de voyage américain développe et ouvert, Book illustration, Google Books, LL/34852

Jonte & Domenech (makers), 1868-1870 (ca), Dark tent (Tente laboratoire avec appareil, Jonte & Domenech, Appareil photographique américain.), Colour image, Musée français de la Photographie, Inventory no: D85.5509, LL/42459

Unidentified photographer / artist, 1884, Fig.32 - Appareil de voyage américain pendant les opérations, Book illustration, Google Books, LL/34853

Unidentified photographer / artist, 1880, Fig.124 - Tente portative, Book illustration, Google Books, LL/34841

Unidentified photographer / artist, 1880, Fig.125 - Tente de M. Smartt, Book illustration, Google Books, LL/34842

Unidentified photographer / artist, 1884, Fig.30 - Appareil de voyage américain emballé, Book illustration, Google Books, LL/34851

1859, Francis's Tent, Advert, Google Books, LL/35345

1861, Leake's Dark Tent, for Photography in the Field, Advert, Google Books, LL/35367

1859, Shepherd & Co.'s Photographic Warehouses, Advert, Google Books, LL/35350

John Dillwyn Llewelyn, 1853 (ca), The Photographer with his Tent, Collodion negative, 11.43 cm x 14.61 cm, Swansea Museum, Library, Swansea Museum, Library (SWASM:SM1987.846.71), LL/7479

Negretti & Zambra, 1858 (ca), 328. Temple of Dendera (Back), [Views in Egypt and Nubia], Stereocard, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 191), LL/11717

Negretti & Zambra, 1858 (ca), 328. Temple of Dendera, [Views in Egypt and Nubia], Stereocard, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 191), LL/11718

Negretti & Zambra, 1858 (ca), 328. Temple of Dendera (Detail), [Views in Egypt and Nubia], Stereocard, Jefferson Stereoptics, Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 191), LL/11719

Platt D. Babbitt, n.d., Whirlpool Scenery. Niagara River, Stereoview, glass, detail, Private collection of Richard O. Titus, LL/42942

Platt D. Babbitt, n.d., Whirlpool Scenery. Niagara River, Stereoview, glass, detail, Private collection of Richard O. Titus, LL/42937

George N. Barnard, 1864, Barnard's photographic equipment, southeast of Atlanta, Ga., Albumen print, National Archives and Records Administration, 111-B-4753, LL/35276

George N. Barnard, 1864, Atlanta, Georgia. Confederate fortifications. (shown is Barnard's wagon and portable darkroom), 1 negative (2 plates) : glass, stereograph, wet collodion, Library of Congress, Prints and Photographs Division, LC-DIG-cwpb-02244 (digital file from original neg. of left half) LC-DIG-cwpb-02245 (digital file from original neg. of right half), LL/36096

Samuel A. Cooley, 1864, Savannah, Georgia (vicinity). View of Fort McAllister and Cooley's photographic tent, 1 negative (2 plates) : glass, stereograph, wet collodion, Library of Congress, Prints and Photographs Division, LC-DIG-cwpb-03484 (digital file from original neg. of left half) LC-DIG-cwpb-03483 (digital file from original neg. of right half), LL/36097

Jackson Bros., n.d., #192 Dale Creek Bridge (Back), [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/11725

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

Samuel Bourne, 1863 (ca), Crossing the Bea River on Mussocks, India, Albumen print, from wet collodion negative, Christie's - London, Courtesy of Christie's London (www.christies.com), LL/31364

W.L. Sutton, n.d., Rock City, (near Olean), [Views on the line of the N.Y.L.C.& O. RR.], Stereoview, Jeffrey Kraus Antique Photographics, LL/37803

W.L. Sutton, n.d., Rock City, (near Olean), [Views on the line of the N.Y.L.C.& O. RR.], Stereoview, detail, Jeffrey Kraus Antique Photographics, LL/37804

M. Nowack, n.d., Untitled [Photographer's dark tent is set-up on the boat.], Stereoview, Jeffrey Kraus Antique Photographics, LL/37805

M. Nowack, n.d., Untitled [Photographer's dark tent is set-up on the boat.], Stereoview, detail, Jeffrey Kraus Antique Photographics, LL/37806

John K. Hillers, 1872, August, The Boat. Hillers, Powell's boat, Stereoview, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (45 / 117), LL/10907

John K. Hillers, 1872 (ca), John K. Hillers at work with his negatives. In camp, Aquarius Plateau, Utah Terr. Hillers was a photographer with the John Wesley Powell Geological Survey., National Archives and Records Administration, 57-PS-809, LL/35230

E.O. Beaman, 1871, 4 May, The first camp of Powell's Second Expedition, United States Geological Service, United States Geological Service (Hillers, J.K. 471), LL/7658

William Henry Jackson, 1872, William Jackson with his "dark box" in the Teton Range. Photographing in High Places, Albumen print, dome topped, George Eastman Museum, Museum purchase: 74:0041:0291, LL/35267

William Henry Jackson, 1873, June, Photographing in High Places, Magazine illustration, Google Books, LL/43143

William Henry Jackson, 1871, Photographing in High Places, Albumen print, National Parks Service, Yellowstone Digital Slide File, Jackson Photos (Accessed: March 2010), LL/35268

William Henry Jackson, n.d., 104. Rocks near Platte Canyon., [Hayden Geological Survey of the Territories], Stereoview, Jeffrey Kraus Antique Photographics, LL/37788

William Henry Jackson, n.d., 104. Rocks near Platte Canyon., [Hayden Geological Survey of the Territories], Stereoview, detail, Jeffrey Kraus Antique Photographics, LL/37789

William Henry Jackson, 1870, 621. Red Sandstones near Platte Canon., Carte de visite, detail, Jeffrey Kraus Antique Photographics, LL/37871

William Henry Jackson, 1870, 621. Red Sandstones near Platte Canon., Carte de visite, detail, Jeffrey Kraus Antique Photographics, LL/37872

Zangaki Brothers, 1870-1880, The Sphinx [Showing one of the Zangaki brothers and their "Dark-Room-Car"], Albumen, detail, 10 x 8 ins (approx.), Internet - Original source ill-defined, LL/40092

Zangaki Brothers, 1870-1880, The Sphinx [Showing one of the Zangaki brothers and their "Dark-Room-Car"], Albumen, detail, 10 x 8 ins (approx.), Internet - Original source ill-defined, LL/40094