Unless you happened to see the headphones, you would think this gentleman 85 years ago was fiddling with his camera. But he’s actually listening to the radio hidden in an old camera case, as described in the May 1940 issue of Radio News.
The two-tube regenerative set could be used with a loudspeaker (mounted where the lens used to be) for strong local stations, or with headphones as shown here. Both the A and B batteries were concealed within the camera.