X-Reposting Policy: Don't redistribute without permission. Rev.1.0.1 Hi, With a friend, I conducted an experiment. We took two one dollar bills. We tried to copy each one on a Canon CLC 550 (aka Canon Color copier). The side with George Washington on it copied fine. The other side didn't. We adjusted the bills so we exposed only half of each bills; that is the top and bottom half and the right and left half. The bottom have copied while the top half didn't. The Left half copied (side with The Great Seal) while the right half didn't. We assumed then it was finding something located in the upper right half of the back of the dollar bill. When we attempted to isolate that part of the bill, it DID copy. Strange. Perhaps someone could look at a 1, 5, 10, 20 and 100 dollar bill and see if there is anything in common in the upper right half of the back of those bills. Interestingly, when we did isolate the upper right half even though it copied, it didn't copy cleanly. You might ask, "How good are the copies." My friend thought they were not great, while I thought they were pretty good. As we were leaving the copier and cleaning up after ourselves, the truth was revealed. My friend tried to pick up one of the "copied" dollars. My friend then remarked, "I guess it is not such a bad copy." /hawk Harry Shapiro Hawk Manager of Computer Services Warwick Baker & Fiore habs@uucp.warwick.com