In 2013 to celebrate the Lunar Year of the Snake, the Reserve Bank of Cook Islands released a very Limited Issue Lunar Snake $50 Fifty Dollar Silver Proof Coin struck in solid fine .999 Silver weighing five ounces of pure Silver and has an inner core covered in Luxury Mother of Pearl.
The reverse features a snake wrapping itself around a bamboo branch while the obverse depicts Her Majesty Queen Elizabeth II by Ian Rank Broadley.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.