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My grandfather was an aircraft inspector for De Havilland in WWII. This is one of the notebooks he used to study for the job. He drew all the pictures. (ibb.co)
submitted 3 years ago by to c/mildlyinteresting@lemmy.world
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[–] [S] 3 points 3 years ago

Me too. He tried to teach me some when I was a kid, but I just don't have the aptitude for it.

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