1268 Résultats
Classification:
livres
livres
Titre:
Grounds and buildings of the Centennial exhibition, Philadelphia, 1876 / edited by Dorsey Gardner.
Grounds and buildings of the Centennial exhibition, Philadelphia, 1876 / edited by Dorsey Gardner.
Actions:
Exemplaires:
Description:
155 pages : illustrations, plans ; 28 cm
Description:
155 pages : illustrations, plans ; 28 cm
Auteur:
Sujet:
- Centennial Exhibition (1876 : Philadelphia, Pa.),
- Centennial Exhibition,
- Exhibition buildings Pennsylvania Philadelphia 19th century.,
- Expositions Constructions Pennsylvanie Philadelphie 19e siècle.,
- World's fairs.
Publication:
Philadelphia, Pa. : Lippincott, [1878]
Philadelphia, Pa. : Lippincott, [1878]
Titre:
Grounds and buildings of the Centennial exhibition, Philadelphia, 1876 / edited by Dorsey Gardner.
Actions:
Exemplaires:
Description:
155 pages : illustrations, plans ; 28 cm
Grounds and buildings of the Centennial exhibition, Philadelphia, 1876 / edited by Dorsey Gardner.
Actions:
Exemplaires:
Description:
155 pages : illustrations, plans ; 28 cm
Classification:
livres
livres
Publication:
Philadelphia, Pa. : Lippincott, [1878]
Philadelphia, Pa. : Lippincott, [1878]
Auteur:
Sujet:
- Centennial Exhibition (1876 : Philadelphia, Pa.),
- Centennial Exhibition,
- Exhibition buildings Pennsylvania Philadelphia 19th century.,
- Expositions Constructions Pennsylvanie Philadelphie 19e siècle.,
- World's fairs.
Classification:
livres
livres
Actions:
Exemplaires:
Description:
x, 18 pages, 3 unnumbered leaves of plates : illustrations ; 21 cm
Description:
x, 18 pages, 3 unnumbered leaves of plates : illustrations ; 21 cm
Auteur:
Sujet:
- Panama-Pacific International Exposition (1915 : San Francisco, Calif.),
- Panama-Pacific International Exposition,
- Exhibitions California San Francisco.,
- World's fairs.
Publication:
San Francisco, [California] : Paul Elder and Company, [1915], ©1915
San Francisco, [California] : Paul Elder and Company, [1915], ©1915
Titre:
The fourth-dimensional reaches of the exposition : San Francisco, 1915 / by Cora Lenore Williams, M. S.
Actions:
Exemplaires:
Description:
x, 18 pages, 3 unnumbered leaves of plates : illustrations ; 21 cm
The fourth-dimensional reaches of the exposition : San Francisco, 1915 / by Cora Lenore Williams, M. S.
Actions:
Exemplaires:
Description:
x, 18 pages, 3 unnumbered leaves of plates : illustrations ; 21 cm
Classification:
livres
livres
Publication:
San Francisco, [California] : Paul Elder and Company, [1915], ©1915
San Francisco, [California] : Paul Elder and Company, [1915], ©1915
Auteur:
Sujet:
- Panama-Pacific International Exposition (1915 : San Francisco, Calif.),
- Panama-Pacific International Exposition,
- Exhibitions California San Francisco.,
- World's fairs.
Classification:
archives
archives
Actions:
Exemplaires:
Description:
907 items., Arranged by series and files.
Description:
907 items., Arranged by series and files.
Auteur:
Sujet:
- Expo (International Exhibitions Bureau) (1967 : Montréal, Québec),
- Expo (International Exhibitions Bureau),
- Architecture, Modern 20th century.,
- Architecture 20e siècle.,
- Architecture, Modern.,
- Architecture (object genre) Canada Québec (Province) Montréal 1960-1970.,
- Fair buildings Canada Québec (Province) Montréal 1960-1970.,
- World's fairs buildings (structures) Canada Québec (Province) Montréal 1960-1970.,
- Fonds (collections),
- Architectural drawings (visual works),
- Negatives (photographs),
- Black-and-white photographs.,
- Slides (photographs),
- Photographs.,
- Documents.
Titre:
May Cutler collection on Expo 67, 1963-1968.
Actions:
Exemplaires:
Description:
907 items., Arranged by series and files.
May Cutler collection on Expo 67, 1963-1968.
Actions:
Exemplaires:
Description:
907 items., Arranged by series and files.
Classification:
archives
archives
Auteur:
Sujet:
- Expo (International Exhibitions Bureau) (1967 : Montréal, Québec),
- Expo (International Exhibitions Bureau),
- Architecture, Modern 20th century.,
- Architecture 20e siècle.,
- Architecture, Modern.,
- Architecture (object genre) Canada Québec (Province) Montréal 1960-1970.,
- Fair buildings Canada Québec (Province) Montréal 1960-1970.,
- World's fairs buildings (structures) Canada Québec (Province) Montréal 1960-1970.,
- Fonds (collections),
- Architectural drawings (visual works),
- Negatives (photographs),
- Black-and-white photographs.,
- Slides (photographs),
- Photographs.,
- Documents.
Classification:
archives
archives
Actions:
Description:
still image
Sujet:
- Jouets en bois France Spécimens; Jigsaw puzzles Specimens; Jigsaw puzzles France Specimens; Casse-tête France Spécimens; Jouets France Spécimens; Toys France Specimens; Wooden toys France Specimens; Casse-tête Spécimens; Exhibitions France Paris; Porte Monumentale (Exposition universelle internationale de 1900); Binet, René, 1866-1911; Binet, René, 1866-1911; Exposition universelle (1900 : Paris, France),
- Wooden Toys (recreational artifacts); Jigsaw puzzles; World's fair Souvenirs
Publication:
J.L [1900?]
J.L [1900?]
Classification:
archives
archives
Publication:
J.L [1900?]
J.L [1900?]
Sujet:
- Jouets en bois France Spécimens; Jigsaw puzzles Specimens; Jigsaw puzzles France Specimens; Casse-tête France Spécimens; Jouets France Spécimens; Toys France Specimens; Wooden toys France Specimens; Casse-tête Spécimens; Exhibitions France Paris; Porte Monumentale (Exposition universelle internationale de 1900); Binet, René, 1866-1911; Binet, René, 1866-1911; Exposition universelle (1900 : Paris, France),
- Wooden Toys (recreational artifacts); Jigsaw puzzles; World's fair Souvenirs
Classification:
livres
livres
Actions:
Exemplaires:
Description:
1 v. (unpaged) : chiefly ill. (some col.) ; 24 cm.
Description:
1 v. (unpaged) : chiefly ill. (some col.) ; 24 cm.
Auteur:
- Meurs, Paul.,
- De Kooning, Mil.,
- Meyer, Ronny de.,
- Bienal Internacional de Arquitetura (4th : 1999 : São Paulo, Brazil)
Sujet:
- Bernardes, Sérgio, 1919-2002 Exhibitions.,
- Expo (International Exhibitions Bureau) (1958 : Brussels, Belgium),
- Expo (International Exhibitions Bureau),
- Exhibition buildings Belgium Brussels Designs and plans.,
- Expositions Constructions Belgique Bruxelles Dessins et plans.,
- Exhibition buildings.,
- Belgium Brussels.,
- Writings.,
- Architectural drawings.,
- Exhibition catalogs.
Publication:
[Ghent, Belgium] : Dept. of Architecture and Urban Planning, University of Ghent, c1999.
[Ghent, Belgium] : Dept. of Architecture and Urban Planning, University of Ghent, c1999.
Titre:
Expo 58 : Bruxelas Pavilhão do Brasil / [Paul Meurs, Mil De Kooning, Ronny De Meyer].
Actions:
Exemplaires:
Description:
1 v. (unpaged) : chiefly ill. (some col.) ; 24 cm.
Expo 58 : Bruxelas Pavilhão do Brasil / [Paul Meurs, Mil De Kooning, Ronny De Meyer].
Actions:
Exemplaires:
Description:
1 v. (unpaged) : chiefly ill. (some col.) ; 24 cm.
Classification:
livres
livres
Publication:
[Ghent, Belgium] : Dept. of Architecture and Urban Planning, University of Ghent, c1999.
[Ghent, Belgium] : Dept. of Architecture and Urban Planning, University of Ghent, c1999.
Auteur:
- Meurs, Paul.,
- De Kooning, Mil.,
- Meyer, Ronny de.,
- Bienal Internacional de Arquitetura (4th : 1999 : São Paulo, Brazil)
Sujet:
- Bernardes, Sérgio, 1919-2002 Exhibitions.,
- Expo (International Exhibitions Bureau) (1958 : Brussels, Belgium),
- Expo (International Exhibitions Bureau),
- Exhibition buildings Belgium Brussels Designs and plans.,
- Expositions Constructions Belgique Bruxelles Dessins et plans.,
- Exhibition buildings.,
- Belgium Brussels.,
- Writings.,
- Architectural drawings.,
- Exhibition catalogs.
Classification:
livres
livres
Actions:
Exemplaires:
Description:
23 unnumbered leaves (1 folded) : all color illustrations ; 27 x 33 cm
Description:
23 unnumbered leaves (1 folded) : all color illustrations ; 27 x 33 cm
Auteur:
- Panama-Pacific International Exposition Company.,
- Albertype Co.,
- Panama-Pacific International Exposition (1915 : San Francisco, Calif.)
Sujet:
- Panama-Pacific International Exposition (1915 : San Francisco, Calif.),
- Panama-Pacific International Exposition,
- World's fairs.,
- exhibition catalogs.,
- Exhibition catalogs.,
- Illustrated works.,
- Catalogues d'exposition.,
- Ouvrages illustrés.
Publication:
San Francisco : R.A. Reid, ©1915 (Brooklyn, N.Y. : Albertype Co.)
San Francisco : R.A. Reid, ©1915 (Brooklyn, N.Y. : Albertype Co.)
Titre:
Panama Pacific International Exposition, San Francisco, 1915 : hand-colored.
Actions:
Exemplaires:
Description:
23 unnumbered leaves (1 folded) : all color illustrations ; 27 x 33 cm
Panama Pacific International Exposition, San Francisco, 1915 : hand-colored.
Actions:
Exemplaires:
Description:
23 unnumbered leaves (1 folded) : all color illustrations ; 27 x 33 cm
Classification:
livres
livres
Publication:
San Francisco : R.A. Reid, ©1915 (Brooklyn, N.Y. : Albertype Co.)
San Francisco : R.A. Reid, ©1915 (Brooklyn, N.Y. : Albertype Co.)
Auteur:
- Panama-Pacific International Exposition Company.,
- Albertype Co.,
- Panama-Pacific International Exposition (1915 : San Francisco, Calif.)
Sujet:
- Panama-Pacific International Exposition (1915 : San Francisco, Calif.),
- Panama-Pacific International Exposition,
- World's fairs.,
- exhibition catalogs.,
- Exhibition catalogs.,
- Illustrated works.,
- Catalogues d'exposition.,
- Ouvrages illustrés.
Classification:
artéfacts
artéfacts
Actions:
Exemplaires:
Description:
1 salt and pepper shaker set (3 pieces) : metal ; 6 x 11 cm
Description:
1 salt and pepper shaker set (3 pieces) : metal ; 6 x 11 cm
Auteur:
Sujet:
- Space Needle (Seattle, Wash.),
- Towers (single built works) United States Washington Seattle.,
- World's fairs United States Washington Seattle.,
- Souvenir Models (representations),
- Saltshakers.,
- Pepper shakers.
Publication:
[between 1962 and 1999] (Japan)
[between 1962 and 1999] (Japan)
Titre:
Space Needle, Seattle, Washington.
Actions:
Exemplaires:
Description:
1 salt and pepper shaker set (3 pieces) : metal ; 6 x 11 cm
Space Needle, Seattle, Washington.
Actions:
Exemplaires:
Description:
1 salt and pepper shaker set (3 pieces) : metal ; 6 x 11 cm
Classification:
artéfacts
artéfacts
Publication:
[between 1962 and 1999] (Japan)
[between 1962 and 1999] (Japan)
Auteur:
Sujet:
- Space Needle (Seattle, Wash.),
- Towers (single built works) United States Washington Seattle.,
- World's fairs United States Washington Seattle.,
- Souvenir Models (representations),
- Saltshakers.,
- Pepper shakers.
Classification:
livres
livres
Actions:
Description:
1 online resource (822 pages) : illustrations.
Auteur:
- Vinzenz Hediger, Florian Hoof, Yvonne Zimmermann -- Vinzenz Hediger -- Lee Grieveson -- Thomas Turnbull -- Florian Hoof -- Ira Plein -- Lucie Česálková -- Fabian Zimmer -- Takuya Tsunoda -- Yvonne Zimmermann -- Steve Foxon -- Brian Jacobson -- Haidee Wasson -- Gregory A. Waller -- Charles R. Acland -- Guilherme Machado -- Scott Anthony -- Rudmer Canjels -- Tom Rice -- Ravi Vasudevan -- Salomé Aguilera Skvirsky -- Maria Vinogradova -- Luca Peretti -- Alexander Stark -- Anna Maria Falchero -- Alain P. Michel -- Christian Bonah -- Patrick Russell -- Martin Stollery -- Annette Davison -- Alessandro Cecchi.,
- Hediger, Vinzenz, 1969-,
- Hoof, Florian,,
- Zimmermann, Yvonne,,
- Anthony, Scott, 1977-
Sujet:
- Industrial films History and criticism.,
- Industrial films Economic aspects.,
- Performing arts.,
- Films d'entreprise Histoire et critique.,
- Films d'entreprise Aspect économique.,
- Arts du spectacle.,
- performing arts (discipline),
- Media studies.,
- ART / Film & Video.,
- PERFORMING ARTS / Film & Video / General.,
- TECHNOLOGY & ENGINEERING / Industrial Design / General.,
- Capitalism,
- Film criticism,
- Motion pictures,
- Culture and globalization,
- Historiography,
- Film history, theory or criticism.,
- Filmmaking and production: technical and background skills.,
- Industrial relations and trade unions law.,
- Film, Media, and Communication,
- FMC,
- Film Studies,
- FILM,
- Media Studies,
- MEDIA,
- Science and Technology,
- SC & TECH,
- Industrial film, non-theatrical film, film studies and science and technology studies, economic history, visual culture,
- Discursive works.,
- Collections,
- Critiques cinématographiques.
Publication:
Amsterdam : Amsterdam University Press, [2024], ©2024
Amsterdam : Amsterdam University Press, [2024], ©2024
Titre:
Films that work harder : the circulation of industrial film / edited by Vinzenz Hediger, Florian Hoof, Yvonne Zimmermann with Scott Anthony.
Actions:
Description:
1 online resource (822 pages) : illustrations.
Films that work harder : the circulation of industrial film / edited by Vinzenz Hediger, Florian Hoof, Yvonne Zimmermann with Scott Anthony.
Actions:
Description:
1 online resource (822 pages) : illustrations.
Classification:
livres
livres
Publication:
Amsterdam : Amsterdam University Press, [2024], ©2024
Amsterdam : Amsterdam University Press, [2024], ©2024
Auteur:
- Vinzenz Hediger, Florian Hoof, Yvonne Zimmermann -- Vinzenz Hediger -- Lee Grieveson -- Thomas Turnbull -- Florian Hoof -- Ira Plein -- Lucie Česálková -- Fabian Zimmer -- Takuya Tsunoda -- Yvonne Zimmermann -- Steve Foxon -- Brian Jacobson -- Haidee Wasson -- Gregory A. Waller -- Charles R. Acland -- Guilherme Machado -- Scott Anthony -- Rudmer Canjels -- Tom Rice -- Ravi Vasudevan -- Salomé Aguilera Skvirsky -- Maria Vinogradova -- Luca Peretti -- Alexander Stark -- Anna Maria Falchero -- Alain P. Michel -- Christian Bonah -- Patrick Russell -- Martin Stollery -- Annette Davison -- Alessandro Cecchi.,
- Hediger, Vinzenz, 1969-,
- Hoof, Florian,,
- Zimmermann, Yvonne,,
- Anthony, Scott, 1977-
Sujet:
- Industrial films History and criticism.,
- Industrial films Economic aspects.,
- Performing arts.,
- Films d'entreprise Histoire et critique.,
- Films d'entreprise Aspect économique.,
- Arts du spectacle.,
- performing arts (discipline),
- Media studies.,
- ART / Film & Video.,
- PERFORMING ARTS / Film & Video / General.,
- TECHNOLOGY & ENGINEERING / Industrial Design / General.,
- Capitalism,
- Film criticism,
- Motion pictures,
- Culture and globalization,
- Historiography,
- Film history, theory or criticism.,
- Filmmaking and production: technical and background skills.,
- Industrial relations and trade unions law.,
- Film, Media, and Communication,
- FMC,
- Film Studies,
- FILM,
- Media Studies,
- MEDIA,
- Science and Technology,
- SC & TECH,
- Industrial film, non-theatrical film, film studies and science and technology studies, economic history, visual culture,
- Discursive works.,
- Collections,
- Critiques cinématographiques.
Classification:
livres
livres
Actions:
Exemplaires:
Description:
291 pages : illustrations (some color) ; 30 cm + 1 stereoscope, 1 anaglyphic glasses and 1 ChromaDepth 3-D glasses
Description:
291 pages : illustrations (some color) ; 30 cm + 1 stereoscope, 1 anaglyphic glasses and 1 ChromaDepth 3-D glasses
Auteur:
- Michel Toumier -- Francoise Reynaud, Catherine Tambrun and Kim Timby -- Jacques Ninio -- Anne McCauley -- Michael Frizot -- Hubert Damisch -- Denis Pellerin -- Philippe Sorel -- Denis Pellerin -- Jacques Perin -- Clement Cheroux -- Denis Pellerin -- Laurent Mannoni -- Michael Frizot -- Michael Frizot -- Kim Timby -- Michel Frizot -- Jean-Marc Foumier -- Odile Fillion -- Anne-Marie Duguet -- Francoise Reynaud --,
- Reynaud, Françoise.,
- Tambrun, Catherine.,
- Timby, Kim.,
- Musée Carnavalet.
Sujet:
- Photography, Stereoscopic History Exhibitions.,
- Three-dimensional display systems Exhibitions.,
- Photography France Paris History Exhibitions.,
- Photography, Stereoscopic Exhibitions.,
- Photographie France Paris Histoire Expositions.,
- Photographie stéréoscopique Expositions.,
- Affichage tridimensionnel Expositions.,
- Photographie stéréoscopique Histoire Expositions.,
- Photography,
- Photography, Stereoscopic,
- Three-dimensional display systems,
- Photographie stéréoscopique Catalogues d'exposition.,
- Stéréogrammes Catalogues d'exposition.,
- Holographie.,
- Tredimensionella bilder.,
- Stereofotografi historia.,
- Holografi.,
- Paris (France) Pictorial works Exhibitions.,
- Paris (France) Ouvrages illustrés Expositions.,
- France Paris,
- Paris (France) Dans l'art Catalogues d'exposition.,
- Paris historia bildverk.,
- Exhibition catalogues.,
- Stereoscopes England 2000.,
- stereoscopic photographs.,
- exhibition catalogs.,
- Illustrated works,
- Exhibition catalogs,
- Exhibition, pictorial works,
- History,
- Stéréogrammes.,
- Catalogues d'exposition.,
- Ouvrages illustrés.
Publication:
London : Booth-Clibborn Editions ; [Place of publication not identified] : Paris-Musées, 2000.
London : Booth-Clibborn Editions ; [Place of publication not identified] : Paris-Musées, 2000.
Titre:
Paris in 3D : from stereoscopy to virtual reality 1850-2000 / in association with the Musée Carnavalet, Museum of the History of Paris ; edited by Françoise Reynaud, Catherine Tambrun and Kim Timby.
Actions:
Exemplaires:
Description:
291 pages : illustrations (some color) ; 30 cm + 1 stereoscope, 1 anaglyphic glasses and 1 ChromaDepth 3-D glasses
Paris in 3D : from stereoscopy to virtual reality 1850-2000 / in association with the Musée Carnavalet, Museum of the History of Paris ; edited by Françoise Reynaud, Catherine Tambrun and Kim Timby.
Actions:
Exemplaires:
Description:
291 pages : illustrations (some color) ; 30 cm + 1 stereoscope, 1 anaglyphic glasses and 1 ChromaDepth 3-D glasses
Classification:
livres
livres
Publication:
London : Booth-Clibborn Editions ; [Place of publication not identified] : Paris-Musées, 2000.
London : Booth-Clibborn Editions ; [Place of publication not identified] : Paris-Musées, 2000.
Auteur:
- Michel Toumier -- Francoise Reynaud, Catherine Tambrun and Kim Timby -- Jacques Ninio -- Anne McCauley -- Michael Frizot -- Hubert Damisch -- Denis Pellerin -- Philippe Sorel -- Denis Pellerin -- Jacques Perin -- Clement Cheroux -- Denis Pellerin -- Laurent Mannoni -- Michael Frizot -- Michael Frizot -- Kim Timby -- Michel Frizot -- Jean-Marc Foumier -- Odile Fillion -- Anne-Marie Duguet -- Francoise Reynaud --,
- Reynaud, Françoise.,
- Tambrun, Catherine.,
- Timby, Kim.,
- Musée Carnavalet.
Sujet:
- Photography, Stereoscopic History Exhibitions.,
- Three-dimensional display systems Exhibitions.,
- Photography France Paris History Exhibitions.,
- Photography, Stereoscopic Exhibitions.,
- Photographie France Paris Histoire Expositions.,
- Photographie stéréoscopique Expositions.,
- Affichage tridimensionnel Expositions.,
- Photographie stéréoscopique Histoire Expositions.,
- Photography,
- Photography, Stereoscopic,
- Three-dimensional display systems,
- Photographie stéréoscopique Catalogues d'exposition.,
- Stéréogrammes Catalogues d'exposition.,
- Holographie.,
- Tredimensionella bilder.,
- Stereofotografi historia.,
- Holografi.,
- Paris (France) Pictorial works Exhibitions.,
- Paris (France) Ouvrages illustrés Expositions.,
- France Paris,
- Paris (France) Dans l'art Catalogues d'exposition.,
- Paris historia bildverk.,
- Exhibition catalogues.,
- Stereoscopes England 2000.,
- stereoscopic photographs.,
- exhibition catalogs.,
- Illustrated works,
- Exhibition catalogs,
- Exhibition, pictorial works,
- History,
- Stéréogrammes.,
- Catalogues d'exposition.,
- Ouvrages illustrés.
Classification:
artéfacts
artéfacts
Titre:
Fort Dearborn Chicago.
Fort Dearborn Chicago.
Actions:
Exemplaires:
Description:
1 model : metal, color, felt ; 6 x 10 x 6 cm in cardboard box (6 x 11 x 6 cm)
- Bibliothèque cage objects 240841 | T501.L1 F6 1933 | c. 1 | Disponible
- Bibliothèque cage objects 240842 | T501.L1 F6 1933 | c. 2 | Disponible
Description:
1 model : metal, color, felt ; 6 x 10 x 6 cm in cardboard box (6 x 11 x 6 cm)
Sujet:
- Century of Progress International Exposition (1933-1934 : Chicago, Ill.),
- Century of Progress International Exposition,
- Fortification Illinois Chicago.,
- Buildings,
- Fortification,
- Fort Dearborn (Ill.),
- Chicago (Ill.) Buildings, structures, etc.,
- Illinois Chicago,
- Illinois Fort Dearborn,
- Forts United States Chicago 1800-1860.,
- Replicas United States Chicago 1930-1940.,
- Exhibition buildings United States Chicago 1930-1940.,
- Souvenir Models (representations),
- World's fair Souvenirs.
Publication:
[1933]
[1933]
Titre:
Fort Dearborn Chicago.
Actions:
Exemplaires:
Description:
1 model : metal, color, felt ; 6 x 10 x 6 cm in cardboard box (6 x 11 x 6 cm)
Fort Dearborn Chicago.
Actions:
Exemplaires:
- Bibliothèque cage objects 240841 | T501.L1 F6 1933 | c. 1 | Disponible
- Bibliothèque cage objects 240842 | T501.L1 F6 1933 | c. 2 | Disponible
Description:
1 model : metal, color, felt ; 6 x 10 x 6 cm in cardboard box (6 x 11 x 6 cm)
Classification:
artéfacts
artéfacts
Publication:
[1933]
[1933]
Sujet:
- Century of Progress International Exposition (1933-1934 : Chicago, Ill.),
- Century of Progress International Exposition,
- Fortification Illinois Chicago.,
- Buildings,
- Fortification,
- Fort Dearborn (Ill.),
- Chicago (Ill.) Buildings, structures, etc.,
- Illinois Chicago,
- Illinois Fort Dearborn,
- Forts United States Chicago 1800-1860.,
- Replicas United States Chicago 1930-1940.,
- Exhibition buildings United States Chicago 1930-1940.,
- Souvenir Models (representations),
- World's fair Souvenirs.
