It's a few hours later...
Gobs of penetrating oil, rust remover, mineral spirits, lots of scrubbing - and the thing works! I'm amazed that I was able to un-seize all the rusted parts. The only piece missing was the drawband, and on this machine it was super easy to replace. Luckily, the mainspring was still in good shape. The pencil holder needs to be re-formed, as it's a little bent out of shape - Not bad for a 110-year-old piece of iron!
It's still kind of ugly looking, and I need to glue the spacebar back together, but I'm super pleased that it took such a short time to get her back into operation. Now we work on pretty...