This coin features a partly PROOF finish horn. A new high-tech technology on antique finish coins. High relief antique finish. Part PROOF finish horn. The narwhal, or narwhale (Monodon monoceros), is a medium-sized toothed whale that possesses a large “tusk” from a protruding canine tooth. It lives year-round in the Arctic waters around Greenland, Canada, and Russia. It is one of two living species of whale in the Monodontidae family, along with the beluga whale. The narwhal males are distinguished by a long, straight, helical tusk, which is an elongated upper left canine. Size: 38.61 mm. Special Features Special PROOF finish on the horn; new high-tech coin improvement. The item “The Narwal Proof Horn on AF Coin 1 oz. Silver $5 2015 Cook Islands” is in sale since Friday, May 26, 2017. This item is in the category “Coins & Paper Money\Coins\ World\Australia & Oceania\South Pacific”. The seller is “dazzlingcoins_com” and is located in USA and Canada. This item can be shipped worldwide.