Cook Islands 2014 5$ Nano Florence Cathedral Ceilings of Heaven Silver Coin 999

Cook Islands 2014 5$ Nano Florence Cathedral Ceilings of Heaven Silver Coin 999Third coin in series, the entire Florence Cathedral fresco is entirely depicted on the octagonal shaped Nano Chip embedded in the coin. Onto the size of a finger nail a very high resolution image is engraved with the technology of microelectronics on an ultra-planar Nano Chip, produced in a dust free environment out of high purity quartz in extreme vacuum. Mintage 999 pcs only! The octagonal shaped chip depicts the fresco of Duomo di Firenze ceiling, Basilica of Saint Mary of the Flower, the main church of Florence,