2018 NIUE Double Dragon 5 Troy oz. Excellent condition in capsule. The item “2018 NIUE Double Dragon 5 oz. 999 Fine Silver Coin Round” is in sale since Monday, January 7, 2019. This item is in the category “Coins & Paper Money\Bullion\Silver\Coins”. The seller is “evonius25″ and is located in Woodward, Iowa. This item can be shipped to United States.