Painted on the side of a brick building overlooking Pioneer Square in downtown Seattle is a faded advertisement for the Washington State ferries. Beneath an illustration of an antique ferry is the caption "Have lunch over seas" in an equally antique font. It’s a clever pun despite the fact that Puget Sound never qualified as a sea and the state ferries have discontinued food service onboard. There is probably a name for such things, or should be—the ghosts of commerce lingering like the faint impression on the Shroud of Turin. This particular case is even more convoluted—a false ghost—since the Washington State ferries didn’t exist prior to 1951.