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File:Héctor Greslebin en uno de los túneles coloniales debajo de la Manzana de las Luces, 1920.jpg

Héctor_Greslebin_en_uno_de_los_túneles_coloniales_debajo_de_la_Manzana_de_las_Luces,_1920.jpg ‎(399 × 550 pixels, file size: 26 KB, MIME type: image/jpeg)

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Español: Durante las obras de demolición del edificio colonial del Colegio Nacional de Buenos Aires y construcción del edificio moderno, entre 1910 y 1937, se descubrieron túneles coloniales que conectaban la Manzana de las Luces donde el colegio estaba emplazado con otras instituciones de la época colonial como el Cabildo, túneles cuya existencia había permanecido en secreto hasta ese momento.

La foto, tomada en 1920, muestra uno de esos túneles y a la derecha a Héctor Greslebin, quien presentó el primer resumen completo de los conocimientos e hipótesis serias acerca de los túneles y obras subterráneas.

La foto fue publicada en un artículo del diario La Prensa en 1964. Descargada de http://www.danielschavelzon.com.ar/?p=2806
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Source Published in 1964 in La Prensa. Downloaded from: http://www.danielschavelzon.com.ar/?p=2806
Author Unknown, published at least in 1964 in La Prensa.

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Public domain
This image is in the public domain because the copyright of this photograph, registered in Argentina, has expired. (Both at least 25 years have passed after the photograph was created, and it was first published at least 20 years ago, Law 11.723, Article 34 as amended, and Berne Convention Article 7 (4)).
Use this template exclusively for photos and NOT for drawings or other pieces of art.
Warning: date and source of any publication prior to 20 year old must be indicated so anyone can check it, and clear evidence that the image was taken more than 25 years ago must be given.

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Public domain

This work is in the public domain in the United States because it meets three requirements:

  1. it was first published outside the United States (and not published in the U.S. within 30 days),
  2. it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States,
  3. it was in the public domain in its home country on the URAA date (January 1, 1996 for most countries).
For background information, see the explanations on Non-U.S. copyrights.
Note: This tag should not be used for sound recordings.

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current15:30, 21 August 2014Thumbnail for version as of 15:30, 21 August 2014399 × 550 (26 KB)RoRo (talk | contribs)User created page with UploadWizard

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