Funny you should mention that photograph Nellie, I actually bought it a few months ago at an auction organized by Etude Coutau Bégarie in Paris.
It is rather big and shot by Boissonnas and Taponnier which were the social parisian photographers between 1900 and 1950. But the reason I really wanted it is because it was the first time I had seen princes Nicolas of Greece wearing her mother in law's rubies.
The story goes that the rubies were bought one by one by king George of Greece to assemble a set for his wife born grand duchess Olga of Russia. The set was inherited by their son prince Nicolas. And after his wife death it went back to the main line of the royal family of Greece.
Finally i got the photographs at the auction. And as soon as the auction was over, a vey polite Russian art dealer came to me asking if i wanted to sell this photograph. One of his russian client really wanted it and he told me he was allowed to offer me three times the amount i had paid.
Of course i said no, and i kept the photograph. It is in a very nice old golden wooden frame and rather grand. I love it.