These neat medals from the New York World's Fair in 1939 generally sell retail for $5 to $15, depending on condition. The one in our picture is nice, so it would hit the high end of that range.

If you were selling this medal to a dealer at wholesale, instead of to a collector at retail, expect the dealer to pay one half the retail value or less. Dealerships need money to run, and a 100 percent mark-up is typical.