Public Domain Images - Olga1910

I found this photo at http://www.geocities.com/zar_de_rusia/alexandra_feodorovna.html It is an official portrait of Grand Duchess Olga Nikolaevna of Russia, taken in 1910. Portraits of her sisters that were taken in the same year and at the same photo session were uploaded and listed as public domain. These portraits were all published on post cards prior to World War I and were available in multiple countries in Europe and probably also in the United States. It's also available on multiple sites on the Internet. I attempted to e-mail the owner of the Web site where I found the photo, but the link for his e-mail is broken. However, I think the image is most likely public domain. If for whatever reason it is not, I don't think the commercial value will be affected because there are better quality images elsewhere and because the image is widely available. If I am mistaken for any reason, please delete the photo.