That is NICE Dagny! I have an older bar about that size that must be 50 years old that my father had. I should see if I can find a stamp on it. I actually keep that one next to the door going into my barn. I really should buy a better one for the house.
Regarding size, I have a couple in the house and I wouldn't go under 12 inches and probably closer to 20 inches, sort of depends on what the construction of a door or window that you might have to access. I think the 12 inch would be fine for most interior doors but the 20 might be better for an exterior.
Anyhow, thanks for the links and information both Dagny and Ray.