This is a great machine. I used to own one months ago, but now I hardly remember anything useful aside from the really large button under the tab is the palm tab, if you havent already figured that out. It takes special Royal standard spools that are much larger than regular ones.

It appears to be in full working condition, even if the typeface is a little worn from use.   It even has the royal backplate which is apparretnly rare.   I put it in my office and it gets a lot of attention due to it classic looks. The only thing I don't like about it is that the actual keys are on the small side, so I have to be careful in typing.   Will have to take some photos. 

What you have is a machine that's built like a tank and will outlive your grandkids.  You could practically type underwater with it.  These things were built to last.  I have two, not counting the parts machines I haven't fixed yet (they are parts machines because 1. they were neglected for years, and  2. were cannibalized for parts.  Anyway, once rolling, these machines have good print, a good touch, and very long-lived.

My theory, beak, is something in Capitalism at work.  As we typewriter collectors all love those neato-whizz-bang features, back in 1950's America (and I'm only guessing now, since I came into the world in the late 1960s), there were typists who were intimidated by what little they had to remember and use.  I just remember hearing about how older typists dealt with their office machinery.  I remember hearing stories about how they were introduced to electric typewriters--even the simple IBM Model A--and how they cried the first couple of days trying to learn that infernal thing that seemed to take off on its own.  Again, I just remember the old secretaries' tales.  

Oh my.  I was only six then, and high enough to reach that bottom drawer.  You'd have probably seen a near-empty booze bottle--and me running around trying to find something to wipe off my tongue!!