Five couples of men posing, Argentina, 1940s or 1950s?

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Ray Batchelor writes:
“From ‘En Ojo con Dientes’ to publicise the 4th Internartional Queer Tango Festival in Buenos Aires in 2010 – ‘Buenos Aires se prepara para la IV edición del festival de tango homosexual’
In Cultura, Noticias, Sociedad on 21 noviembre, 2010 at 15:26

I am grateful to Birthe Havmøller for suggestion that the five couples – with one more person taking the photograph – might be a football team of 11 players creating this much used image. 1940s? 1950s? And in the countryside, perhaps?”

What do you belive the copyright status of this image to be?
Ray Batchelor believes: “The image is out of copyright.”

The image url:
http://elojocondientes.com/2010/11/21/buenos-aires-se-prepara-para-la-iv-edicion-del-festival-de-tango-homosexual/