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 Chinese Blacksmiths Use Massive Five-Story Hammer To Forge A Flange On The Street Yamaha’s Musical Designers Create Some Interesting Two-Wheeled Concepts Rewritable Laser Thermal Labels This Tree Cutting Machine Is Monstrous (And Monstrously Satisfying) Self running Tilting Tray – Perpetual Motion Big Marble Machine (1000 Marbles)