Here is what I found on internet:
This is an exquisite collection of 20 different genuine silver and bronze coins, one each from the first Twenty Centuries Anno Domini. The coins span 2000 years of history, representing diverse cultures and ancient, lost civilizations from around the world. Each coin is protected in an archival capsule and beautifully displayed in a deluxe custom-made cherry hardwood case. The case features a rich, forest green velour-like interior and an engraved plaque inscribed with a list of the coins.