Gonzalo Collazo writes:
“I couldn’t find the source where I took the photo for the first time, which it said “1926 Instantánea. Hombres caminando mientras dan pasos de baile. Tango de arrabal mistongo”, “1926 Snapshot. Men walking while giving dance steps. Tango at poor suburbs”; but I found two others.
No pude encontrar la fuente de donde saqué la foto por primera vez, que decía “1926 Instantánea. Hombres caminando mientras dan pasos de baile. Tango de arrabal mistongo”, pero encontré otras dos.

”

What do you believe the copyright status of this image to be?
Gonzalo Collazo believes: “The image is out of copyright.”

The image url:
http://www.tangology101.com/main.cfm/title/Tango-History-in-Pictures/id/1165