The 1-dollar brown, orange, yellow, and tan 1979 stamp of the Americana Issue promotes America's light, picturing the Rush Lamp and Candle Holder with the wording "America's Light Fueled by Truth and Reason."
One pane of one hundred of these stamps was issued with the brown (the last color printed, though it covers much of the stamp) inverted. The pane was purchased by a CIA employee who had been sent to the post office to purchase stamps. After the involved employee saved one each, the remainder was sold to a stamp dealer. The stamps have become known as CIA Inverts. The government attempted to reclaim them, but was not successful.