[Runscott]

That is super-cool - clearest platinum-caused image I've seen.

Edited to add: David and I have had quite a few conversations about these, as I'm always shopping around for Edward Curtis platinum prints and we find a few platinum portraits at the antique shops. No one knows why the platinum prints do this, and no other photographic processes do, but it doesn't seem to have any effect on the 'lending' photo. All (from what I've seen) platinum prints that come in a folder, cause this effect on the folder page facing them.