Its unique concept as the first spherical coin from the Mint of Poland and high-end decorations will attract even the most demanding collectors. Comes in a special case with a themed illustration and certificate of authenticity. Mintage of just 1,007 coins.Face: Design based on the 17th century map by Dutch cartographer Willem Janszoon Blaeu, with Swarovski crystals marking each of the Seven Wonders of the World. Top: Lists "Seven Wonders" along with the weight, purity and Mint of Poland mint mark. Bottom: Shows the Niue coat of arms along with the year 2015.