P3D Kodachrome aging

["John Goodman" <jgood@xxxxxxxx>]

What a great list this is! Loved Mark Dottle's "Realist in the 
Closet" attachment, and so many posts are so useful and  
informative, not to mention fun to read.

In looking through a large number of Realist slides from the 
late 50s and early 60s, a small percentage of the 
Kodachromes were spoiled by a curious sort of rot, 
ranging from a flurry of cyan (or a slightly greener shade of 
bright blue-green) spots, to an arbitrary spread in the 
same color of what looks like dried mud, fractal-like 
fissures of indeterminate scale, covering a significant 
portion of the image. These problems seem to be confined 
to certain rolls, and I'm curious about the cause, the result 
of which seems to be one color layer's chemical instability.

JG