It is a photo of the Argentine president Arturo Frondizi (left side) with the vice president Nixon (right), in the congress of the United States.
Unknown author<span style="display: none;">Unknown author</span>
1959
Extraido del lirbo M. E. Alonso, E. C. Vasquez (2005). Historia: la Argentina contemporánea (1852-1999), 3ra edición, Aique, pp. 112 y 113. <a href="//commons.wikimedia.org/wiki/Special:BookSources/950-701-622-8" title="Special:BookSources/950-701-622-8">ISBN 950-701-622-8</a>.