And three commemorative coins.

According to the query point, the purchase collection network displays:

1, the first set of "He" commemorative coins: issued in 2009, with a circulation of100000.

2. The second group of "He Zi" commemorative coins: 20 10, official calligraphy, circulation 100000.

3. The third group of "He Zi" commemorative coins: 20 13, with a circulation of 50 million pieces.

4. The fourth group of "He Zi" commemorative coins: 20 14, cursive calligraphy, with a circulation of 70 million pieces.

5. The fifth group of "Harmony" commemorative coins: 20 17, with a circulation of 250 million pieces.