The Knoxville Chamber of Commerce is offering race fans the opportunity to purchase a piece of championship history. A limited number of Knoxville National’s 50th Anniversary Limited Edition Collector’s coins. For a limited time the chamber is taking pre-orders at a reduced price of only $10 plus tax. Those who pre-order their coins will receive them in April. Orders will be available for pick up at the Chamber of Commerce office or can be delivered via mail.