for some reason blue paper was common in colonial days.

Well, that's pretty interesting, of troy. I wonder what the reason was that blue paper was common? I'll bet either you or wwh could find out why!

Now what was the reason green glass was common in colonial times? Heaven preserve me from having to go back through the achives! Does anybody remember offhand? I know we've discussed this color-of-glass subject at length.

Best regards,
WW