The audio is only fair for most of these recordings - most of the speakers were too far away from the recording device and didn't speak loud enough, and only Auctioneer Bob Merrill used a microphone consistently.
An educational video produced for the American Numismatic Society's exhibition "Drachmas, Doubloons and Dollars: The History of Money," which ran at the New York Federal Reserve from 2002 to 2012. For more information and content, please go to numismatics.org/exhibits.