In article <[🔎] 20090624025557.GB9480@rzlab.ucr.edu> you wrote: > I imagine that we can arrange to have a copy of that or a similar book > around for people to compare. And a UV lamp (at least one for money checking, but a special one for documents is even better, they have different wavelength. Eurpean ID cards typically have marks in both colors) Greetings Bernd