When we moved I got rid of a lot of tools because there just wasn't enough space or really need for them all, I still kept a lot too. I had a few toolboxes that had belonged to my dad, one I had never got into too much because it was mostly worn out things that he had kept if he had to "make" something for a special use. When I went though that just to see if I could get rid of some things I found this little folding rule covered with grime. I don't know how old it is, because they made these for years and years, it could have belonged to Dad or either of my grandfathers or a great grandfather. Anyway, I really like it.