My Plan for the Next Sunny Weekend Day - Curled Cards

In my last post, I linked to a 1970 Kellogg's Baseball card discussion.  One post mentioned placing cards in direct sunlight for a couple of hours and then placing the card in a heavy book for a few days.  

I'm not much of a scientist but I plan to track these tests very closely since each year of Kellogg's cards has a difference from the previous years in terms of size, thickness, gloss, etc.

I'm going to start with the 1983 Fernando Valenzuela since I have way too many of them.  They are curled but not cracked.  I will try two with one hour or sunlight, two for two hours and two for three hours.  Then I will leave them for two days in a book. 

I hope to try this on Saturday or Sunday if we get any sunshine here.  More later.