This bill has creases that look like they were there when printed and not from folding. I also have a 1953 one that is shorter than this one.
If the bill was creased or folded when printed, when you unfold it, the note is larger than a regular note and there is a white uninked area inside the fold, and the design is correct on both sides of the fold. There are cool ones that fold out super large and asymetrical shapes. Here are some examples:
It has definitely been folded or creased many times. Still, it's nice and they don't make them like that any longer. It's a keeper.
Normal circulation wrinkles and folds. By the way.. There is a Paper Currency forum on CoinTalk For any of your future currency threads.