The photo comes from Chilean archive and was first published in 2010 per http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-71942010000100002 . This makes Chile source country of the photo. Copyright for unpublished photos expired in Chile 50 years after creation, in 1958. As the photo was in public domain in source country on URAA date, its copyright was not restored in the United States. This puts the photo into public domain under license:

This file is part of the common cultural heritage (public domain) according to the Intellectual Property Law of Chile (Law No. 17336 and its amendments). Nevertheless, its author and source must be acknowledged. See here for the type of material that is part of the common cultural heritage (public domain). Please note that moral rights still apply when the work is in the public domain. They encompass, among others, the right to the respect of the author's name, quality and work. The integrity of the work must also be preserved (art. 11). Attribution therefore remains mandatory. čeština | English | español | македонски | português | +/−