Mint julep of them in specially made Kentucky Derby collectible glasses. In a contract arrangement between the Brown-Forman Corporation and Churchill Downs that has lasted more than 18 years, the Early Times Mint Julep Cocktail has been the designated "official mint julep of the Kentucky Derby", although the Early Times sold within the United States is a Kentucky whiskey, not a bourbon, due to its being aged in used, rather than new, oak barrels. However beginning in 2015, Old Forester, which is also produced by the Brown-Forman Corporation, is now "the official drink of the Kentucky Derby," when sold as Old Forester
Mint-made errors is valuable. Although no other coin may be identical to a coin with an off-center strike, off-center strikes happen often enough that buyers can choose from many examples each of which varies slightly from the other. Mint error coins can be the result of deterioration of the minting equipment, accidents or malfunctions during the minting process, or intentional interventions by mint personnel. Accidental error coins are perhaps the most numerous and in modern minting are usually very rare, making them valuable to numismatists. Intentional intervention by mint personnel does not necessarily include a deliberate attempt to create an error, but