These lithographs were given out free to people who preordered the game in Australia. A limited number were also given out at the FFXIII promotional event in HMV in London. I actually brought these from ebay but they originated from the event at HMV. The cover was signed by producer Yoshinori Kitase and art director Isamu Kamikokuryo.
Three concept lithographs are included. Unfortunately they only have the usual promotional artwork. In saying that they are still nice and very detailed. The paper they are printed on is high quality too – its thick paper which would usually be used when painting with watercolours as opposed from thinner glossy which my (rather expensive) Mass Effect lithographs are printed on.
a final fantasy blog 
Very nice! Would you consider selling them?
I have been popping the odd collectible on Ebay here and there, so maybe one day.