Among the many vivid Shanghai scenes photographed by Jack Birns in 1949 there is a series of portraits of women (who look Russian to me), taken inside an empty restaurant with lush wooden paneling, inlaid floor and huge windows above the eye level:
Jack Birns (1949), Google Arts & Culture.
Getty and Google that feature Jack Birns' photos offer very little or no descriptions, but the unusual high window on the photo gives away its location. Behind the window is the recognisable facade of the Sassoon House (Cathay Hotel):
Here is another photo from the series:
The girls are sitting in the Palace Hotel Restaurant and Bar, located at the northern end of the building, furthest from the Bund:
Image from minguotupian.com.
This photo from the Harrison Forman collection is really glamorous. Was it taken not long before the Black Saturday or during the occupation?
This photo of the 1937 carnage in August 1937 shows the high semicircular window frames:
Image by Karl Kengelbacher (1937) from virtualshanghai.net.
Since the interior was completely destroyed by the explosion on Bloody Saturday, what we see on the 1949 photo must be a restoration.