First of all I think you all might be interested in this site of the Sovereign Order of Malta with a small history of their coin making.
http://intranet.fao.org/searchframe..._type=googleYou might also be interested that in the GoldQuest Champions of Peace series is a gold coin from the Order of Malta. It is a 5000 Liras coin depicting Mother Teresa with a slogan Mother Teresa- Fight Hunger to reduce poverty. It was issued in 2001 and endorsed by the Food and Agriculture Organization of the United Nations (FAO).
Unfortunately I do not have my copy any longer but I will try to find a photo.
Harold