the bentwood case with the wheat design on the end is a Western Electric case.......but maybe other brands used the same case.

Yes, that is a mass produced (still high quality) case that was sold to MANY manufacturers.

It's called "tree of life" and several companies had it on cases for their machines.

http://needlebar.org/cm/displayimage..._display_media

"Western Electric" is a badge name, probably a National made machine.

Yeah, Western Electric made the motors and another company, often National, made the sewing machine. As for the bobbins, I know Singer bobbins are shorter, they might fit the shuttle you need. And some bobbins had brass ends that where simply pressed on so if they're too long you can push one end further down the shaft and cut off the excess. I did it with a shuttle I didn't have a bobbin for, worked great.

The bentwood case is carved in the Eastlake style. Someone loved the machine a lot to get a nice box like that for storage. Agreed, not just a crate, but a safe-storage box. Nice save.