https://www.boredpanda.com/vintage-photos-life-before-autocad/?utm_source=facebook&utm_medium=social&utm_campaign=BPFacebook&fbclid=IwAR3LyGXCgK4rtQr5Z3eUaxonQNZ3hmXwzy1aJ6GkZ pj7qprYhGN5F5QlKP0
Interesting site. I remember going to engineering clients offices and seeing a few guys drafting. And a local reproduction shop just REEKED of ammonia for making the blueprints. I was had to go in there, the ammonia smell was so strong. Now that same shop is basically order free. Everything is digital and fast and quiet.
My former boss worked at a electrical plant in the 1950 and 1960s. He said one of the draftsmen was drawing up a plan of the place and had spent months getting it perfect. They took some black paper and cut it in the shape of a giant drip of ink, and put an empty bottle of India ink at the top of the table to make it look like the ink had spilled on his drawing. He came back from the bathroom and almost had a stroke. After it was over he admitted he had been "had" and could see the humor, but she threatened everyone with bodily harm if they ever do it again.