With a mintage of only 3,000 sets worldwide, the First Almanac Series Silver Puzzle Coin Set is a must have as a unique item for your collection! This 13-in-1 puzzle coin set is a very unique piece. Each piece features its own impressive design and 3-way interlocking mechanism making it similar to a jigsaw puzzle. This set comprises all 12 zodiac animals from the first almanac issued from 1981-1992. The co-existence of all 12 zodiac animals signifies harmony and serenity.