I like the older Remington side spool machines as they are over engineered wonders. Don’t loose those ribbon spools unless you enjoy spending your hard won dollars; they are hard to find.
This beast needed a heavy cleaning that included removing shellack from most of the surfaces. While popular to brighten fading paint; this time it was all over mechanical surfaces and it took WAY too much alcohol to dissolve that gunk from the carriage, ribbon feed, margin stops, tab rack, back spacer, I can go on and on. 
The funny thing, it also got much of the shellack off the paint and the machine polished up kinda nice. Once I freed everything up so stuff moved I got to work. It was missing a foot and the customer couldn’t find one so I got the last foot off my Remington parts machine.
The back space spring was broken and it looks like someone tried to adjust it not knowing all it needed was a replacement. I made new paper feed rollers as the old ones were so rotted.
There were various missing screws throughout the machine so maybe that shellack job held things together just waiting for a good servicing. It types real nice and looks good to boot.