It's the only one like I have, the rings don't ring any bells for me, but I know there are many on here much more knowledgeable than I on tools. I'm putting these with the old pedal and treadle tools. This screwdriver I had been using to open paint cans, good thing I'm not sloppy with paint or it would be a mess.
So who made it? and the era? Wood is soft... or just feels light as compared to other things that sized.