"Plain walls are the refuge of the artistically destitute"
And apparently she's in good company.
I found this ad a few minutes ago in Building Age for November 1927---as you can see, I try to stay current with trends---and I love Lady Mendl's aesthetic pronouncement, whether I agree or not.
And there's that wallpaper again: Zuber's Decor Chinois, a huge favorite of the 1920's. I did a post about it a few weeks back, and it showed up again in a 1920's home theater posted here on 'The Peak of Chic' last week
P.S. In case you are wondering, I don't agree.