I found the link to the presentations about 18th century spectacles that I was telling you about at the Spring Scout.  There wasn’t as much in here regarding tinted lenses as I was thinking, but it’s a very good presentation regardless.  Check it out…

There is some more good info that I found on as well, including a bit about tinted lenses.  Just hop on there and do some searches for spectacles, or sunglasses, or such.  Hope this helps!


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