Crisper Stor:
"Guess the "Crisper Stor" is for crackers, etc."
And I'm betting it was very useful indeed in the South before air-conditioning. A lot of things took special measures to keep crisp back then. I remember my great-grandmother toasting crackers a bit before serving them.
And Lay's potato chips, before the invention of today's Mylar packaging, used to come with a little thing inside the bag called a "Fresh-Pak." It was a small packet, made of perforated cellophane, that contained a bit of silica gel, to absorb moisture, and a bit of activated charcoal, to absorb the slightly "off" odor that chips used to get while stored before they got loaded up with enough preservatives to mummify Tutankhamen all over again.