Late last week, I posted an item about the development of the typewriter. Charles over at Dustbury has just recently posted a photographic item about a typewriter as well, highlighting a version of the machine that you paid to use.
Just deposit coins into the proper place and you are given an amount of time in which the typewriter will work. Once the time expires, you have to insert more coins or declare your novel or essay finished. Ray Bradbury used a coin-operated typewriter for the manuscript of "The Fireman" on it, which later became the novel Fahrenheit 451. In an interview, he called the book his "dime novel," because those were the coins the machine accepted and he used 98 of them to complete it.