What effect will LED lights have if they shine on T206s?

[Snowman]

Originally Posted by GasHouseGang

I wonder how putting a card in a greenhouse would help get rid of foxing? And who figured this out the first time?

I don't know if I'm the first person to figure it out, but I don't know of anyone else that has ever done this or tried it. I came up with the idea on my own. However, I do know that in the early days of making paper, people used to stretch large scrolls and sheets out and lay them on the grass to whiten the paper for the same reasons. That's where I got the idea from.