In my day, Olympia typewriters were supposed to be the best. I wore one out, and now I have my mother's. As said above, it is quite serviceable for typiing small things like labels.
The correction function works as follows. My Olympia had a setting using a lever that would enable it to use the top or bottom half of the typewriter ribbon. If the ribbon was all black, it made no difference, but allowed you to use different parts (top and bottom half) of the ribbon for uniformity of color density instead of flipping over the ribbon. Second, it might be black on the top half and red on the bottom half to type these two different colors. Third, instead of red, the ribbon could be half white, impregnated with a correction substance. By resetting the lever, you could type over your mistakes, but once that part of the white ribbon was used, it wasn't as good as before.
The correction function works as follows. My Olympia had a setting using a lever that would enable it to use the top or bottom half of the typewriter ribbon. If the ribbon was all black, it made no difference, but allowed you to use different parts (top and bottom half) of the ribbon for uniformity of color density instead of flipping over the ribbon. Second, it might be black on the top half and red on the bottom half to type these two different colors. Third, instead of red, the ribbon could be half white, impregnated with a correction substance. By resetting the lever, you could type over your mistakes, but once that part of the white ribbon was used, it wasn't as good as before.
