English: An aerial photo of the Iru fort in Northern Estonia, 1924. The photo is digitally enhanced.
Date
Source
Old archive photo, digitally enhanced, year 1924
Author
Unknown authorUnknown author
Licensing
Public domainPublic domainfalsefalse
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Public domainPublic domainfalsefalse
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https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Public domainPublic domainfalsefalse
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 75 years or fewer.
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
Note that a few countries have copyright terms longer than 75 years: Mexico has 100 years, Jamaica has 95 years, and Colombia has 80 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term.