While going through an album I had recently purchased, I found these imperforate Nicaragua stamps. I've only seen these perforate, and I guess I'd just like to know when these may have been printed, and maybe even by who, since they're probably fake. They have a very clean gum, making me even more curious as to why the printer left them imperforate. Why not just go all the way toward an accurate copy?
Edit: I always saw the word rouletted but I'd never been faced with identifying a rouletted stamp. Thanks for the swift responses!