and the threaded part with the t-handle is probably so you can clamp it to a bench when using it?
Yes and when I can find it in my shop I will take a pic of it with a saw clamped in it and if Im lucky I can find the saw set tool too.(It's used to bend the teeth on the saw to get the kerf on the blade.)
Keep your powder dry boys.
Things are gonna get rough.
thanks guys. i hate throwing away things not knowing what they are.
in this case, its worth cleaning up for someone and i'll send it on its new life restored.
dad use to sharpen his saws. makes sense he had this.