Here ya' go! According to "The Collectors Guide To Antique Typewriters" it is indeed a book typewriter. Although I thought 'One-Between-Two' was very clever!


 

One thing this makes clear is that these typewriters weren't about typing out literary books, but instead books that were used for bookkeeping. In other words, accounting books. The machine in the 1902 ad appears to be a much smaller design than the one in the eBay auction. I can't believe, despite the ad's hyperbole, these machines were very popular. It seems like a cumbersome and overly complex solution when placed next to a standard typewriter with a very wide carriage, even if they required loose pages that had to be put into a binder after the entries had been completed. I'll have to ask my mother about this as she worked as a bookkeeper in a large firm and I vaguely recall that she used some extremely oversized pieces of equipment for data entry.

Oh, and maybe they made giant books...