1928 Corona Four
Up for sale is an absolutely beautiful Corona Four in "Channel Blue" which was made in 1928. More information on this machine's paint finish and the collaboration between Corona and DuPont can be found on the following page: http://www.sljohnson.net/typewriter/corona/Corona-Duco.html
This is one of few typewriters that pictures simply do not do justice for. While this typewriter may not be 100% perfect cosmetically, it's as close as you're going to get without things being non-original. In certain spots, the paint is lightlychipped (mainly the ribbon covers) however none of this is noticeable unless you look over this machine with a fine comb. As I said, this typewriter is about as nice as you'll ever find for being completely original. Mechanically, this machine is fully functional right down to the bell and is a great typewriter. Even despite this machine's very old age, this typewriter could still be used heavily and frequently. The platen has been re-surfaced and should last an extremely long time. The rubber feet are still in good condition. The only major flaw with this machine is that it's missing the original carrying case. If you're lucky, you could find a spare for sale on eBay or Etsy, or you could purchase a parts machine with a case in good shape if you find it necessary to have a case. This typewriter would be worth $800+ with a case, so it's priced to reflect the lack of a case.
Unfortunately this typewriter does not use universal ribbons (the spool caps won't fit over the newer spools) however you will want to re-thread the original spools anyways, which you can still use universal ribbons sold on this site to do.
The owner's manual for this typewriter can be downloaded here: https://docs.google.com/file/d/0B9INR5ltu-o8NXFFUVNpdWZSalk/edit
If you're looking for an absolutely stunning classic that's still functional and in near mint shape, then this is a beautiful choice.