This photo has intrigued me. I am hopeless at dating photos but I had the feeling that the tone of it was earlier than suggested. I thought the main clue would be the coats. They are all the same basic style with the large collars and the buttoned belt.
I've trawled my way through thousands of fashion photos over the last day or two, trying to find something similar and the nearest I could get was ones from the 20s and 30s.
Then I decided to focus attention on the (clearly painted) backdrop, which obviously would be a studio.
Eureka !! I am going to settle on circa 1930 after seeing
THIS Hit the zoom and check out the background.