Replica toilet paper roll factory Hackle.
Roll perforated toilet paper was invented by German entrepreneur Hans Klenk in 1928. In each roll there were exactly one thousand sheets separated from each other by perforation. Klenk had no doubts about the need for industrial production of "curlers" and in 1928 he founded the factory in Ludwigsburg. For the name of the company he used the first letters of his name and surname: Hakle. In addition, he came up with a very effective from a psychological point of view advertising slogan: "Demand rolls Hakle, and you do not have to say the word "toilet paper".