The 16th century knight sarcophagus photo? I am not really sure, that's been on my computer for a long time. I may have gotten it from CGTextures.com as I get lots of photos from there, but it may be older that the days since I've found that site.
Sometimes I look for other stuff finding usable photos for free download, then tuck them away from some future use. I am sure that's how I came about with that photo.