To the List:
 
I accumulated a modest collection when yonger,
kept them in clear boxes and uncovered on shelves,
and saw some of them fade a bit in color.
 
I tend to presume this is due to ultraviolet light from the window.
 
I just stumbled across the CONCH-L list, and I have one thing to mention.  I
was looking for a sharp-cutoff UV-blocking glass filter, cheap, for something
at work, and found that the
Lexan plastic sheet at Home Depot was just right.  Crystal clear to the eye,
but transmits almost no UV.  A good trick, really.
 
Naturally the manufacturers want customers to know their red carpets won't
fade if they fill the whole sliding door with this stuff.
 
The specific brand was GE XL-1 or -10,  whichever is being sold now.
The other was selling about 2 years ago;  it's not so effective.
 
If I ever get the display case I've always thought of,  I'll put this Lexan
behind or instead of the glass.
 
Is this common knowledge?  Is it enough to prevent fading?
 
 
Jim Swenson