Author rights expire eighty (80) years after the death of the author or the death of the last coauthor.
Where the copyright has been transferred by means of an act between living persons, the protection period still remains for eighty (80) years after the death of the author.
The rights for collective works and anonymous works expires eighty (80) years from the date of publication, and for cinematic works, eighty (80) years after the movie's premiere.
In all cases where a literary, scientific or artistic work has as its owner a legal entity or an official body or any institution under government public law, the term of protection shall be deemed to be seventy (70) years as from the date of publication.
In all cases where the applicable term of protection starts on the date of publication, the said term shall be understood to end on December 31 of the relevant year.
The author and the work source must be acknowledged when reused in Colombia, except if the author is unknown.
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 80 years: Mexico has 100 years and Jamaica has 95 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term.