Struck using 10 grams of pure silver this new coin uses state-of-the-art minting and colorizing techniques so advanced and so realistic you’ll swear it is a real seashell. Every coin in the Castaway collection (mintage 10,000 pcs) includes a numbered Certificate of Authenticity. Packaging includes woven “beach-mat” collector’s box and a individually numbered Certificate of Authenticity. This is the first coin issued in the Castaway Collection.