NGC PF70 China 1991 World Culture Figures Author Mark Twain Silver Coin 27g S10Y. This coin was issued by The People's Bank of China in 1991. The People's Republic of China. Face Value 10 China Yuan. If you have any question about item and me, do not hesitate any more, contact me directly on it.The item "NGC PF70 China 1991 World Culture Figures Author Mark Twain Silver Coin 27g S10Y" is in sale since Monday, June 4, 2018. This item is in the category "Coins & Paper Money\Coins\ World\Asia\China\PRC (1949-Now)". The seller is "warmshy" and is located in Shanghai. This item can be shipped worldwide.