Sholes and Glidden typewriter seeking to diversify, Remington further refined the typewriter before finally placing it on the market on July 1, 1874. During its development, the typewriter evolved from a crude curiosity into a practical device, the basic form of which became the industry standard. The machine incorporated elements which became fundamental to typewriter design, including a cylindrical platen and a four-rowed QWERTY keyboard. Several design deficiencies remained, however. The Sholes and Glidden could print only upper-case letters—an issue remedied in its successor, the Remington No. 2—and was a "blind writer", meaning the typist could not see what was being written as it
Typewriter in the Sky the best fantasy produced in this century". A review of the book upon its 1995 re-release in the "Spartanburg Herald-Journal" characterized the story as both fantasy and science fiction, calling it a "classic science fiction fantasy adventure"; and placed it within the Golden Age of Science Fiction. "St. James Guide to Science Fiction Writers" (1996) called the story "Hubbard's most successful fiction". Marco Frenschkowski wrote in a 1999 article for the "Marburg Journal of Religion" in a bibliography of L. Ron Hubbard, and called "Typewriter in the Sky": " Classic fantasy tale about a man who discovers he is part