Behold, 1959's groundbreaking Xerox 914, the first successful plain-paper photocopier, weighing in at 648 lbs, making a whopping 136 copies/hour. Much beloved for its propensity to burst into flame while operating, an occasion considered so normal by the manufacturer that they shipped it with a small fire-extinguisher, euphemistically called a "scorch guard."
(Thanks, Fipi Lele!)
(Image: Xerox_914, Wikimedia Commons/Xerox)