This machine is really in pretty good shape with just a few sticky keys. The ribbon reverse mechanism must be dirty because the ribbon will not advance unless I hold the directional level by hand (They stick out on the side of these Model 5 machines). I plan to take the shell off of this typewriter at some future date so I can address the grime and surface rust on some of the mechanisms. I am wondering what to do about the rust that shows through the paint. I will certainly not be re-painting the machine as I would never want to spoil the Navy decals. Any suggestions would be welcome in the comments.