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 Wood Chopping Machines Are Just Interesting to Watch This Machine Will Eat Your Car Ninebot One, the Futuristic Self-Balancing, One-Wheeled Scooter These Gears Are Synched at 4,500 RPM Not Like The Old Days: Automated Carrot Picking Machine Laser Cleaning Is So Satisfying; Let’s watch it again