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 Reinventing The Conveyer Belt Kidswalker NT – An Operational Exoskeleton Mecha Robot You Can Buy For $21,000 Laser Rust Removal is Very Satisfying to Watch Twisted Helical End Drill Reduces Cutting Resistance New Machine Turns Sheet Metal Into Custom Parts for Prototypes Genius Way to Save Parking Space