Digital BW, The Print

> Of course, all inks fade.  I suppose even silver prints fade.  (I'll
> eventually make some silver test strips for comparative fade testing.)

In the Conservation and Archives communities, this is exactly one of 
the points being made in developing standards for digital archiving. 
Silver prints do fade, even when kept in ideal conditions. Silver 
prints now in collelctions have only had their deteriation slowed down 
by being stored in ideal conditions - many older ones are now 
deteriorating noticably, and nothing much else can be done to prevent 
it - they are reaching the end of their life and will eventually 
deteriorate so far as to be unusable - be it after 75, 100, 125 or 150 
years.