From: Edward J OConnell <ejo@world.std.com> Subject: Re: jrk@sys.uea.ac.uk (Richard Kennaway) To: "Perry E. Metzger" <pmetzger@lehman.com> Cc: cypherpunks@toad.com

seen a canon representative, with a straight face, say at a trade show that there was a chip in these machines that detected the pattern created by currency, and blocked out the image.

Read something like this in either Electronic Design or Electronic Products, within the last nine months. Sorry, can't cite. Claims were for the _new_ color Canon copiers to be sold beginning 1994. The article claimed the memory of the copier held representations of all major paper currencies. Any attempt to copy would produce only a black rectangle in stead of a bill. The worrisome item was the statement that the copiers would add some sort of unspecified marking to each copy made, allowing copies to be traced back to their source. No details on the latter, of course. Don't recall if there was even a hint of invisibility. With the SS concerned about money funnier than that we use each day, I had no trouble believing in a machine capable of currency recognition. What I could never decide to believe without proof, however, was the marking/traceability claim.