The sale is expected to fetch between pounds 60,000 and pounds 80,000 at an auction by Christie's in Glasgow.
The former Fulham star, now a property developer, said: "I would be lying if I said I wasn't upset to lose it, but I didn't earn enough money as a footballer to retire on. I hope whoever finally gets it is able to display it to the public; it is an important part of our heritage."
It is feared that the medal will be bought by a private collector. Kevin Moore, director of the National Football Museum, which opens next year, said he had not made a bid for it.Reuse content