sign on the corner

For the last week there's been a sign propped up against a lamppost on the corner of this street, Morris, where it meets Smith Street, just opposite the main drag, Lackey Street. An old, frayed, oblong piece of plywood, it has painted on it For Sale, $200 and a mobile phone number. Several times it has fallen down into the gutter or flat onto the footpath, each time someone has picked and propped it up again. But what is for sale? The sign itself? The telephone pole? Or something else? Each time I pass it I'm tempted to ring the number, just to satisfy my curiosity. Until today ... when I saw that it has migrated up the street to where the rubbbish bins stand outside the wall of the medical centre that occupies that corner. Does this mean the sale is over? Is it too late to solve this particular mystery? I feel something has been lost, something perhaps that never was ...