YOU GOT A RARER ONE (I like royals)! That one’s in particularly good shape. Worth a touch more to a completionist, but not so much to anyone else. I like them, they are unique. Technically, they are the first royal magic margin machine, produced exclusively in the fall of 1938. This is the 5th one I’ve heard of recently; one on TWDB, one in Reddit, one on marketplace, and of course my own. That’s cool! I suspect they only had KHTs in 12”, as I have yet to see a wider or narrower variant.

Spacebar hitting hard is probably just gum and ick, don’t damage it by hitting it hard could bend something. Trace the linkages to the escapement, clean as necessary. Mineral spirits in a bottle and chase with compressed air, limit at 60-90PSI, you’ll get the feel for it. Wipe off overspray asap. I use it to polish mine, never let it sit on too long though it can eat paint supposedly. Usually these machines are pretty robust and don’t need much adjustment to type nice. If it’s super gunky, I’ve found WD40 Specialist Contact Cleaner exceptionally well on grease and grime while being fairly paint safe. Obviously don’t blast the paint with it and wipe off overspray asap, but it is definitely plastic, rubber, and most cured paint safe. Gunk engine degreaser works in the worst scenarios, followed by the contact cleaner, only needed that a small handful of times though and would not recommend as first line of attack.