juffrouwjo who is a historical consultant from Amsterdam (check his profile). has tons of sets of photographs. They were mostly taken in the Netherlands and Germany during the WWII. There are also sets old albums, documentations and such. I can't list them all. The sets I liked the most were "when smoking wasn't evil, advertisement from a tobacco friendlier time", "music sheet collection", "Old Post" and "Nostalgic Photography with a 1930's camera".
Flickr - juffrouwjo
August 5, 2009