Ronald Jardine was one of the very first employees at Atari. We're talking the early 1970s here. Employee #159. Wonderfully, Jardine recently took photos of his old ID badge from his time there and uploaded them, giving us an insight into the cutting-edge security methods employed at the blossoming tech company.
It was...a card with his photo and signature on it. Ah, the days when people could actually be relied upon to return lost things out of the kindness of their heart.
rajron's photostream [Flickr, via it8bit]