you know its gonna be a while before I

Get into this hobby on various levels.
But I finally found the gallon ice cream container that I put alot of tudor factory players in. I ordered some a few years ago. But forgot some of them.
you know what I found ?
I have the Ravens- white jersey- 11 players- with the original =B= logo crest on the helmet !!! WOW

Whats the shelf life on number sheets stickiness ?