this post was submitted on 30 Aug 2023

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Mildly Interesting

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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 1 year ago by FlyingSquid@lemmy.world to c/mildlyinteresting@lemmy.world

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[–] Vengefu1Tuna@lemm.ee 10 points 1 year ago

I grew up in a sheet metal fabrication company in the US. It's wild to see drawings of measurement tools I'm familiar with from 80 years ago. I had no idea these designs were this old. This is so cool, thanks for sharing, OP!