"Slavery and Suffering" from Russian film "Three Women / Подруги" (1935)

Here is a scene from the 1935 Russian film "Подруги" with a performance of the traditional revolutionary song "Slavery and Suffering."
We can hear one unknown oktavist among the singers, especially after 2:00, where he descends to F#1. Thanks to one of my subscribers for making me aware of this!