This is How Mail Was Processed Back in 1970 Not sure why I was able to watch this whole video, I don’t feel any smarter or any better…but I loved it. Facebook Prev Article Next Article Machinery Checkout these cool gadgets... Related Posts This 3D Printer Is an Artist That Paints With Light Reinventing The Conveyer Belt The universe’s biggest gear reduction! Incredible bamboo crafting skills from Japan Wood Chopping Machines Are Just Interesting to Watch This Machine Has 44 Million Horsepower
