A: "In the olden days, before personal computers, I worked as a type setter in a print shop. Type would be produced on film, run through a wax machine to wax the back of it and then cut apart and placed in position. To save on film, everything was smooshed together, you had to cut it apart and move it into place…every line, number and punctuation. I had a tool like this, but it was much longer. Sometimes it was more useful than the T-square."