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
Perth Mint remained busy as staff turned their skills to making fine gold bullion bars. But it was not long before the Mint was involved again in the production of coins. During World War II, the Perth Mint began minting the Australian coinage from base metals. Up until the end of 1983, the Perth Mint also manufactured much of Australia's lower-denomination coin currency. The Perth Mint achieved "arguably the purest of all gold" in 1957 when the mint produced a proof plate of six nines - 999.999 parts of gold per thousand. The Royal Mint was so impressed that it ordered some