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How many Taishan coins are there in a roll?

20 19 Taishan commemorative coins: 20 pieces.

Taishan Commemorative Coin: one 5 yuan; Only 20 yuan per person; Reservation information: name, ID number, mobile phone number, enter the verification code and SMS verification code, and then select the exchange outlets and the number of reservations. The front pattern is National Emblem of the People's Republic of China, the top of the national emblem is printed with the name "People's Republic of China (PRC) (People's Republic of China (PRC))", the bottom is printed with the decorative Taishan pattern with the year number "20 19", and the back is printed with Taishan pattern.