Here is an in-studio portrait of Rudolph Valentino taken around 1918-1919. Apparently he rented this suit of armor for a small role, and wanted himself photographed in it. I believe he later autographed a copy of the photo to the husband of Agnes Ayres.
The photo has been somewhat altered and changed over the years (including colorized) for the benefit of movie magazines and newspapers. Here is the photo exactly as it was taken.