Edwardian postcard by F.G.O. Stuart of H.M. The King & H.R.H. The Duke of Connaught

Unknown Location! I've been unable to find this location.
Do you know where this is?

Duke Of Connaught Edward Vii Hudson & Kearns Military Portrait Royal Family Unknown Location

Number:

Title:

H.M. The King & H.R.H. The Duke of Connaught

Details:

I wonder if this image was taken at the same time as the individual portraits here and here?

Interestingly, they appear to be standing in front of a painted screen.

Print Origin:

Hudson & Kearns

Print Type:

Screen Block

Print Tone:

Black & White