How's teh "typist" gonna figure the distance to the center of those proportional font "points" in the three lines before there were calculators?
What? Use a slide rule?
Then, so what?
he still has to put the typewriter at the ".xxx point" position to start typing!
I know proportional font typewriters were available at the time. But I don't believe for a second that any line unit, Air Force or Army, would put the bucks out for one. We're supposed to believe that a unit that didn't even have letterhead stationary spent extra for a fancy typewriter?
Most "repro" typing was done on light card stock, known as blue line masters. The sheets had several markings around the edges and down the center. The blue did not reproduce with standard xerox machines. It was very easy to make sure you always started at exactly the same point on the center line. The typewriter had a key that was a "place finder" and you set it to the same place each line.