1891, Songsheet for "You Press the Button We Do the Rest" (words by Webster Fulton, music by W.S. Mullaly), Songsheet, Musée Nicéphore Niépce / Museum of Photography, LL/76213

1891, 4x5 Tourists Pocket Outfit, consisting of a 4x5 Tourists Pocket Camera, with1 Daisy Double Dry-Plate Holder,1 Canvas Carrying Case, with shoulder strap, and1 Extension Tripod, No. 1, with patent reversing attachment,, Book illustration, Flickr, LL/55494

Atelier Nadar, 1891, Docteur Etienne-Jules Marey, inventeur de la chronophotographie, Glass negative, black and white, Médiathčque de l'architecture et du patrimoine, LL/89242

Atelier Nadar, 1891, Docteur Etienne-Jules Marey, inventeur de la chronophotographie, Glass negative, black and white, Médiathčque de l'architecture et du patrimoine, LL/89241

Boorne & May, 1891, Sarcee Indian, Albumen print, George Eastman Museum, LL/57154

Boorne & May, 1891, Sarcee Indian, Albumen print, George Eastman Museum, LL/57155

G.R. Lambert & Co., 1891, William Hancock, Chinese Maritime Customs Service official, posing with unidentified Sumatran man, Cabinet card, Harvard-Yenching Library, LL/76259

Lutterodt family, 1891, King Taki II, the king of Accra, with some of his servants 1891, Cabinet card, Evangelische Missionsgesellschaft in Basel / Basel Mission Archives / Mission 21, LL/79383

Wm. Notman & Son, 1891, Lounge for Mr. Thompson, Montreal, QC, Albumen print, McCord Stewart Museum, LL/125520

Sebah & Joaillier, 1891, 227 Marchand de melons, Albumen print, Sotheby's - London, LL/58831

Sebah & Joaillier, 1891, 255 Cimetiere turc a Eyoubet et Groupe de femmes turques, Albumen print, Sotheby's - London, LL/58830

Sebah & Joaillier, 1891, 216 Faiences a l'entree du turbé de la Sultane Valide et le chef gardien en priere, Albumen print, Sotheby's - London, LL/58829

Sebah & Joaillier, 1891, 189 Entrée et Tour du Seras Kierat, Albumen print, Sotheby's - London, LL/58828

Benjamin J. Falk, 1891, Harmony and Discord, Albumen print, Archive Farms, LL/118517

Benjamin West Kilburn, 1891, Tis the Land of Liberty, flowing with milk and honey, Stereoview, Private collection of Allan Janus, LL/128437

C. Schiendl, 1891, The discoverers and founders of photography (Die Entdecker und Gründer der Photographie), Illustration, Internet - Original source ill-defined, LL/119686

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 12; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105875

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 10; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105876

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 13; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105874

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 3; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105877

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 1; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105878

Carleton E. Watkins, 1891, Golden Gate Mining Claim, No. 2; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105880

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 9; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/130501

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 9; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105859

Carleton E. Watkins, 1891, Golden Feather Mining Claim, No. 4; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105879

Carleton E. Watkins, 1891, Golden Gate Mining Claim, No. 23; Feather River, Butte County, Cal., Albumen print, Bancroft Library, University of California Berkeley, LL/105881

Charles F. Lummis, 1891, A Hummingbird perched on a Hand, Cyanotype, Internet - Original source ill-defined, LL/67652

Dmitry Ermakov, 1891, Georgian Military Highway. Darial canyon and the highway, Albumen print, Georgian National Museum, LL/46411

Edvard Munch, 1891, Rue Lafayette [Die Rue Lafayette], Oil painting, Nasjonalmuseet for kunst, arkitektur og design, LL/40748

Edward Linley Sambourne, 1891, Self portrait of Edward Linley Sambourne, Illustration, Creative Commons - Wikipedia, LL/57423

Emilie V. Clarkson, 1891, Toil, Gelatin silver print, Nelson-Atkins Museum of Art, LL/81442

F. Kratky, 1891, [Statue of George of Podebrady (1420-1471), King of Bohemia], [General Land Centennial Exhibition In Prague (1891)], Stereoview, Internet - Original source ill-defined, LL/126444

Fahreddin Türkkan, 1891, Students of the Military Academy pose with construction labourers at a tunnel on the railway line from Haydarpasa in Istanbul to Ankara, Photograph, Private collection of Engin Ozendes, LL/122262

Felice Beato, 1891, Assault on Kyaing-Kwintaung Stockade, Burma, by the 2nd Devon Regt, during the Wuntho Sawbwa campaign, Albumen print, Cambridge University Library, Royal Commonwealth Society, LL/40137

Frances Benjamin Johnston, 1891, Breaker boys in Kohinor mine, Shenandoah City, Pa., Cyanotype, Library of Congress, Prints and Photographs Division, LL/37120

Francis Chit, 1891, 'Golden Mountain' inside the Palace on the occasion of the ceremonial haircut of the heir to the throne, Albumen silver print, National Gallery of Australia (NGA), LL/58900

Francis Chit, 1891, Garden statues, Royal Palace, Bangkok, Albumen silver print, National Gallery of Australia (NGA), LL/58903

F. Jay Haynes, 1891, Juneau Alaska, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17169

F. Jay Haynes, 1891, Chilkaht Range, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17170

F. Jay Haynes, 1891, Chilkaht Peaks, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17171

F. Jay Haynes, 1891, Chilkaht Alaska, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17172

F. Jay Haynes, 1891, Approaching Muir Glacier, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17174

F. Jay Haynes, 1891, Face of Muir Glacier from Steamer, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17175

F. Jay Haynes, 1891, Face of Muir Glacier from Steamer, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17176

F. Jay Haynes, 1891, Face of Muir Glacier from Steamer, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17177

F. Jay Haynes, 1891, Face of Muir Glacier from Morain, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17178

F. Jay Haynes, 1891, Muir Glacier from Top, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17179

F. Jay Haynes, 1891, Ice Peaks, Muir Glacier, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17180

F. Jay Haynes, 1891, Muir Glacier and Bay, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17181

F. Jay Haynes, 1891, Glacier Bay, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17182

F. Jay Haynes, 1891, Glacier Bay, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17183

F. Jay Haynes, 1891, Indian Ave. Sitka, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17184

F. Jay Haynes, 1891, Trading Store & Greek Church Sitka, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17185

F. Jay Haynes, 1891, The Ocean View from Sitka, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17186

F. Jay Haynes, 1891, Str. Queen on Ice, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17173

F. Jay Haynes, 1891, Face of Taku Glacier, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17167

F. Jay Haynes, 1891, Taku Glacier, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17166

F. Jay Haynes, 1891, First Iceberg, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17165

F. Jay Haynes, 1891, Totems: the Bear, Ft. Wrangle, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17164

F. Jay Haynes, 1891, Tredwell Mine Douglas Island, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17168

F. Jay Haynes, 1891, Steamer Landing Ft. Wrangle, [Alaska Views], Albumen print, Christopher Wahren Fine Photographs, LL/17163

Frank Meadow Sutcliffe, 1891, Dinner Time, Photographic print, British Library, LL/40181

Frank Meadow Sutcliffe, 1891, "Sunshine and Shadow" [Whitby Harbor], Albumen print, Private collection of Henri van der Tol, LL/126673

Frank Meadow Sutcliffe, 1891, "Sunshine and Shadow" [Whitby Harbor], Carbon print, Private collection of Henri van der Tol, LL/126669

Frédéric-Auguste Cazals (1865-1941), 1891, La culture du "moi"., Ink drawing and collage, Internet - Original source ill-defined, LL/121179

Frédéric-Auguste Cazals (1865-1941), 1891, La culture du "moi"., Ink drawing and collage, Internet - Original source ill-defined, LL/121180

Frederick H. Evans, 1891, Ely Cathedral, Galilee Porch into Nave, Platinum print, Hans P. Kraus, Jr., Inc., LL/30031

Frederick H. Evans, 1891, Ely Cathedral: Tomb of Bishop of Redman, Platinum print, Lee Gallery, LL/3205

Frederick H. Evans, 1891, Ely Cathedral, Entrance to Bishop West's Chapel, Platinum print, Charles Isaacs Photographs, Inc, LL/11512

Frederick H. Evans, 1891, In the New Forest, Platinum print, George Eastman Museum, LL/74970

Frederick H. Evans, 1891, Ely Cathedral; Prior's Door and Old Bedesman, England, Platinum print, Leonard Joel, LL/52370

Gabriel Lippmann, 1891, Color spectrum, method of interference, Photograph, Fondation Herzog, LL/57276

Georges Demeny, 1891, Sequence of the Mouth Pronouncing the Sentence 'Je vous aime', Collotypes, Rijksmuseum, LL/78721

Georges Poulet, 1891, Groupe chez le commissaire de police, [Aurora Argentina], Cyanotype, Daniel Blau Ltd, LL/50724

Georges Poulet, 1891, Groupe d'agents à Suncho-Corral, [Aurora Argentina], Cyanotype, Daniel Blau Ltd, LL/50723

Georges Poulet, 1891, Campement à Sauce Viejo, [Aurora Argentina], Cyanotype, Daniel Blau Ltd, LL/50726

Georges Poulet, 1891, Environs de Sauce Viejo, [Aurora Argentina], Cyanotype, Daniel Blau Ltd, LL/50727

Georges Poulet, 1891, Construction of the Sauce Viejo Station [Argentina], Cyanotype, Archive Farms, LL/55233

Grabill, 1891, Villa of Brule. the great hostile Indian camp on River Brule near Pine Ridge, S. D., National Archives and Records Administration, LL/35242

Grabill (Deadwood, S.D.), 1891, Indian Chiefs and US Officials, Photograph, Cowan's Auctions, Inc, LL/83476

Hannah Maynard, 1891, Gems of BC, 1890, Glass plate negative, composite, British Columbia Archives, LL/70868

Henry P. Bosse, 1891, From Foot of Robinson's Rock Looking Upstream, Cyanotype, National Gallery of Art, LL/76747

Henry P. Bosse, 1891, Savanna, Ill., Cyanotype, National Gallery of Art, LL/76752

Henry P. Bosse, 1891, S. McGregor, Ia., Cyanotype, National Gallery of Art, LL/76751

Henry P. Bosse, 1891, C.B. & Q. R.R. Bridge at Burlington, IA, Cyanotype, Lee Gallery, LL/50709

Henry P. Bosse, 1891, DeSoto, Wisconsin, Cyanotype, SFMOMA - San Francisco Museum of Modern Art, LL/50708

Henry P. Bosse, 1891, No. 155a. Lower Lock Des Moines Rapids Canal, Cyanotype, Metropolitan Museum of Art, LL/79875

Henry P. Bosse, 1891, From Wagon Road at S. St. Paul, Minn. Looking Downstream, Cyanotype, National Gallery of Art, LL/76748

Henry P. Bosse, 1891, Construction of Rock and Brush Dam, L.W. 1891, Cyanotype, National Gallery of Art, LL/76743

Henry P. Bosse, 1891, No. 135. Iowa State Penitentiary - Fort Madison, Iowa, Cyanotype, Metropolitan Museum of Art, LL/79876

Henry P. Bosse, 1891, Pine Bend, Cyanotype, Minneapolis Institute of Art - MIA, LL/54490

Henry P. Bosse, 1891, Levee at Rapids City, Illinois, Cyanotype, National Gallery of Art, LL/76750

Henry P. Bosse, 1891, Fort Madison, Iowa, Cyanotype, Minneapolis Institute of Art - MIA, LL/54491

Henry P. Bosse, 1891, Wingdams Opposite Robinson's Rocks, Cyanotype, Minneapolis Institute of Art - MIA, LL/54492

Henry P. Bosse, 1891, Dakota, Minn., Cyanotype, National Gallery of Art, LL/76744

Henry P. Bosse, 1891, Levee at La Crosse, Wis., Cyanotype, National Gallery of Art, LL/76749

Henry P. Bosse, 1891, Fountain City, Wis., Cyanotype, National Gallery of Art, LL/76745

Henry P. Bosse, 1891, From Foot of Robinson's Rock Looking Upstream, Cyanotype, National Gallery of Art, LL/76746

Herve Friend, 1891, Redlands From Smiley Hill, Source requested, LL/16158

Innokenty Pavlovsky, 1891, Prisoners are chained to wheelbarrows, Sakhalin island, Photographs, Private collection of Sergey Maximishin, LL/112569

J. Jarvis, 1891, Sugar Landing, Lower Levee, New Orleans, U. S. A., Stereoview, Library of Congress, Prints and Photographs Division, LL/109442

J. Jarvis, 1891, A Cotton Float, New Orleans, U. S. A., Stereoview, Library of Congress, Prints and Photographs Division, LL/109441

J.C. Schaarwächter, 1891, Francisco d' Andrade, Cabinet card, Private collection of T. Max Hochstetler, LL/14253

J.C. Schaarwächter, 1891, Francisco d' Andrade as Don Juan, Cabinet card, Private collection of T. Max Hochstetler, LL/19915

J.E. Middlebrook, 1891, The Floors - sorting the gravel for diamonds, Kimberley, South Africa, Albumen print, Cambridge University Library, Royal Commonwealth Society, LL/40127

J.E. Middlebrook, 1891, Diamond mine - flat sheet on 800 level, bottom of rock shaft, Kimberley, South Africa, Albumen print, Cambridge University Library, Royal Commonwealth Society, LL/40126

J.H. Grabill, 1891, Indian Chiefs who counciled with Gen. Miles and settled the Indian War. Deadwood, SD, Albumen print, Hindman Auctions, LL/118697

J.L. Wimbush, 1891, Young Higgins, Magazine illustration, Private collection of Jack and Beverly Wilgus, LL/61862

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the central court with the Palace of Industry at the far end], Photograph, Royal Institute of British Architects - RIBA, LL/126445

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the Palace of Industry], Photograph, Royal Institute of British Architects - RIBA, LL/126446

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the central court showing the pavilion to the right of the Palace of Industry], Photograph, Royal Institute of British Architects - RIBA, LL/126447

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the Art Exhibition building], Photograph, Royal Institute of British Architects - RIBA, LL/126448

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the Kingdom of Bohemia Parliament building (Landesausschuss des Konigreiches Bohmen)], Photograph, Royal Institute of British Architects - RIBA, LL/126449

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: a Bohemian farmhouse], Photograph, Royal Institute of British Architects - RIBA, LL/126450

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the Prague Iron Industry Pavilion], Photograph, Royal Institute of British Architects - RIBA, LL/126451

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the Pavilion of the City of Prague], Photograph, Royal Institute of British Architects - RIBA, LL/126452

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the Paper Industry Pavilion], Photograph, Royal Institute of British Architects - RIBA, LL/126453

K. Bellmann (Prague), 1891, [General Land Centennial Exhibition, Prague: the Zivnostenska Bank Building], Photograph, Royal Institute of British Architects - RIBA, LL/126454

Louis De Wecker and J. Masselon, 1891, Fond D'Oeil Normal, Collotype, Archive Farms, LL/125754

N. Walwin Holm, 1891, Annexation of Ado to Lagos Colony, Photograph, Internet - Original source ill-defined, LL/116551

Sarony, 1891, Sarah Bernhardt, Cabinet card, NYPL - New York Public Library, LL/104283

Sarony, 1891, Sara Bernhardt [Dressed as Cleopatra], Cabinet card, Harvard Houghton Library, LL/121054

Sarony, 1891, Sarah Bernhardt, Cabinet card, Classic Photographics, LL/48714

Ogawa Kazumasa Studio, 1891, Tokyo Geisha, Albumen print, tinted, Old Japan, LL/9216

R.K. Bonine, 1891, War, S[tate] and Navy Departments, Washington, D.C., Stereoview, Library of Congress, Prints and Photographs Division, LL/108349

R.K. Bonine, 1891, White House lawn, front view, Stereoview, Library of Congress, Prints and Photographs Division, LL/108350

S.G. Payne & Son, 1891, Florence Nightingale, Bromide postcard print, National Portrait Gallery - NPG, LL/41380

Teoberto Maler, 1891, Chúnkanab, el templo, Gelatin developing out paper, J. Paul Getty Museum, LL/51452

Unidentified artist, 1891, [The interior of a photographic studio], Illustration, Internet - Original source ill-defined, LL/79054

Unidentified photographer, 1891, Athens, [Die Mittelmeerfahrt der "Augusta Victoria"], Collotype, book plate, Sotheby's - London, LL/82726

Unidentified photographer, 1891, Malta, [Die Mittelmeerfahrt der "Augusta Victoria"], Collotype, book plate, Sotheby's - London, LL/82727

Unidentified photographer, 1891, Auburndale School, Toledo, Ohio, Photograph, Private collection of William Christen IV, LL/64725

Unidentified photographer, 1891, Jerusalem, [Die Mittelmeerfahrt der "Augusta Victoria"], Collotype, book plate, Sotheby's - London, LL/82725

Unidentified photographer, 1891, Cairo, [Die Mittelmeerfahrt der "Augusta Victoria"], Collotype, book plate, Sotheby's - London, LL/82724

Unidentified photographer, 1891, Augusta Victoria, [Die Mittelmeerfahrt der "Augusta Victoria"], Collotype, book plate, Sotheby's - London, LL/82723

Unidentified photographer, 1891, Constantinople, [Die Mittelmeerfahrt der "Augusta Victoria"], Collotype, book plate, Sotheby's - London, LL/82722

Unidentified photographer, 1891, A Road in Hong Kong, Albumen print, hand-coloured, Archive Farms, LL/120493

Unidentified photographer, 1891, Photographic utensils, Book illustration, Private collection of Bálint Flesch?, LL/102532

Unidentified photographer, 1891, Eastman Kodak Office on State Street [Rochester], Photograph, George Eastman Museum, LL/125213

Unidentified photographer, 1891, N.Y. potato, Monroe County seedling grown 1891, weight 9 pounds 8 ounces, Millie R. Pratt, Cabinet card, Capitol Gallery, LL/69017

Unidentified photographer, 1891, The camel caravan starting from Cootanoorina, [Elder Scientific Exploring Expedition (1891-1892)], Photograph, Internet - Original source ill-defined, LL/55103

Unidentified photographer, 1891, Brocktown Fair, Tintype, 1/2 plate, Private collection of Andrew Daneman, LL/40995

Unidentified photographer, 1891, Execution at Kowloon in 1891. Five bandits awaiting execution, Albumen print, Wellcome Collection, LL/97127

Unidentified photographer (German), 1891, Dance in honour of deceased King Bell, Cameroon, Albumen print, Rijksmuseum, LL/79111

Unidentified photographer (German), 1891, Man, photographic advertisement, Collodion silver print, George Eastman Museum, LL/74649

W.C. Thompson (Amesbury, Mass.), 1891, Studio portrait of a young girl with plaster studio props and a painted background, Cabinet card, Private collection of Eva Allen, LL/80563

Wallace (Manchester, N.H.), 1891, The most popular barber in New Hampshire, 1891, Cabinet card, Larry Gottheim, Be-hold, Inc, LL/69660

William Notman, 1891, Five men curling, Albumen print, National Library of Scotland, LL/84328

William Henry Jackson, 1891, 06087. Popocatapetl & Ixtacchihuatl, Albumen print, Andrew Smith Gallery, LL/2318

Kazumasa Ogawa, 1891 (taken) 1892 (print), V. Biwajima Bridge, [The Great Earthquake of Japan, 1891], Halftone, possibly the Meisenbach process, Private collection, LL/30059

Kazumasa Ogawa, 1891 (taken) 1892 (print), XXII. Nagara Gawa Railway Bridge, [The Great Earthquake of Japan, 1891], Halftone, possibly the Meisenbach process, Private collection, LL/30060

Kazumasa Ogawa, 1891 (taken) 1892 (print), XXIII. Nagara Gawa Railway Bridge, [The Great Earthquake of Japan, 1891], Halftone, possibly the Meisenbach process, Private collection, LL/30061

Kazumasa Ogawa, 1891 (taken) 1892 (print), XXVIII. Life after the Earthquake, [The Great Earthquake of Japan, 1891], Halftone, possibly the Meisenbach process, Private collection, LL/30062

A.A. Glines, 1891, Backmark for "Arthur A. Glines, 6 Winter St., Boston, Mass.", Cabinet card, back, Private collection of Dan Barber, LL/92641

1891, Victor Bizot, 1891, Six months around the world, 1886-1887, (Lyon, Imp. Schneider brothers), Book cover, Archive Farms, LL/70965

F. Jay Haynes, 1891, Back of a card from the series "Alaska Views", [Alaska Views], Albumen print, back, Christopher Wahren Fine Photographs, LL/17161

F. Jay Haynes, 1891, Title page of album "Alaska Views" with identifications of images (note the Haynes imprint), [Alaska Views], Title page, Christopher Wahren Fine Photographs, LL/17160

F. Jay Haynes, 1891, List of available views from back of a card from the series "Alaska Views", [Alaska Views], Albumen print, back, detail, Christopher Wahren Fine Photographs, LL/17162

1891, Sheet music for "Picture That Is Turned Toward The Wall", words by Chas. Graham, Sheet music, Internet - Original source ill-defined, LL/90696

F. Brookes, 1891, Advertisement for F. Brookes, artist and photographer, Advert, British Library, LL/37236

Frederick Gutekunst, 1891, Frederick Gutekunst [Photography store], Book illustration, Flickr, LL/55509

James Edward Kelly (born New York City 1855-died New York City 1933), 1891, Mathew B. Brady, Drawing, pencil heightened with white on paper, American Art Museum, Smithsonian Institution, LL/97552

James Musgrove, 1891, Detail from a photograph mount, Autotype, Oceania-Ethnographica, LL/23393

W.C. Beetham, 1891, Silver Medal for Leeds International Photographic Exhibition, awarded to W.C. Beetham for "Whole Plate or Larger Photograph", 1891, Medal, Private collection of David Likar, LL/16633