The Waterford Crystal Millennium Champagne Bottle Coaster is a vintage piece made of clear crystal, originating from Portugal. This round coaster features an etched Millennium pattern, signed by Waterford, and has a diameter of 5 inches and 3 inches in height. Manufactured in the year 2000, this commemorative item is a part of the Waterford product line, making it a unique and collectible piece for drinkware and barware enthusiasts.