BTW, I did repair the bakelite broken top handle as I found the other piece in the box by using some Gougeon Bros. Epoxy and some PVA on the threads so it won't stick should I want to remove it.
Also, I haven't figured out what the aluminum star adjuster is under the front of the top handle. There's a wide shaft that does all the way down from there like it adjusts the height of something, but the rear has no complimentary adjustment. The star currently turns very stiffly, so I will take it easy and maybe soak it in some PB Blaster or that ATF/Acetone concoction.
DM&FS