Image:Mittelholzer-tschadsee.jpg

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Summary

Description

Lake Chad in December 1930. Air photo taken by Swiss pilot and photographer Walter Mittelholzer (1894-1937).
Source

Own scan from book "Tschadseeflug" by Walter Mittelholzer, published in 1932 in Switzerland (publisher: "Verlag Schweizer Aero-Revue" in Zürich).
Date
Author

Walter Mittelholzer (1894-1937)
Permission
( Reusing this image)

see below

Licensing

Public domain
 This image (or other media file) is in the public domain because its copyright has expired.

This applies to the United States, Canada, the European Union and those countries with a copyright term of life of the author plus 70 years.

Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement that rule of the shorter term.

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This non-U.S. work was published 1923 or later, but is in the public domain in the United States because either
  • it was simultaneously published (within 30 days) in the U.S. and in its source country (Switzerland) and is in the public domain in the U.S. as a U.S. work (no copyright registered, or not renewed),

or

  • it was first published outside the United States (and not published in the U.S. within 30 days) and
  • it was first published before 1978 without complying with U.S. copyright formalities or after 1978 without copyright notice and
  • it was in the public domain in its home country (Switzerland) on the URAA date (January 1, 1996).

This work may still be copyrighted in other countries.

For background information, see the explanations on Non-U.S. copyrights. The Swiss copyright on Mittelholzer's work's expired at the end of 1987, since Switzerland had a copyright term of 50 years p.m.a. until 1993, and the extension to 70 years p.m.a. made in 1993 did not restore already expired copyrights.

File history

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Date/Time Dimensions User Comment
current 16:20, 25 February 2008 1,200×775 (324 KB) Gestumblindi ({{Information |Description=Lake Chad in December 1930. Air photo taken by Swiss pilot and photographer Walter Mittelholzer (1894-1937). |Source=Book "Tschadseeflug" (1932) by Walter Mittelholzer |Date= |Author=Walter Mittelholzer (1894-1937) |Permission= )
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