Craftsman Hand Brace Lite Restore

Hope this is the right place. I recently bought a then-unknown brand brace at a pawn shop for $7. With some pliers I was able to turn the ratchet and could switch it with some effort. The shell and jaws looked to be serviceable. Everything was rusty, but the wood looked to be in good shape and the bearings spun relatively well. This was my first shot at restoring an old tool outside a partial job I did on an old Dunlop #4 plane that I may finish.

I neglected to take a picture at the start, but the first is the after I started cleaning the shell and ratchet housing. I am not looking to make it like-new, but plan to use it regularly. I've already used it a fair bit and it works very well. As I cleaned it I found it's a Craftsman 10 and, after "Made in USA" it's stamped, "BB". I sanded and used a wire cup bit in a drill on the frame, used a cabinet scraper and sanding block on the wood. 3-in-1 on all moving parts. Finished with boiled lindseed oil and paste wax. We borrowed a bit from my grandfather and gave it a quick sharpening. My kids love it and I do to.

Now to 1) get bills paid off 2) visit more pawn shops. Now that I've learned to sharpen the blades, I need some other planes. And a hand drill. And spokeshave. And. . .

So, a few questions.

1. What does the "BB" stand for?
2. Any way to tell when this was produced?
3. I haven't found much info on Craftsman braces. Since I've never used another, how does this stack up?
4. Anyone know about Dunlop planes? Were they decent? I can't find much info about it either.