Mannen Tsuho Publique Deposited
The twelve ancient Sen of Japan. They are as follows:
1. Wado Kaiho Issued in 708 A.D.
2. Mannen Tsuho 760
3. Jingo Kaiho 765
4. Ryuhel Eiho 796
5. Fuju Jimpo 818
6. Showa Shoho 835
7. Chonen Taiho 848
8. Nyueki Jimpo 859
9. Jogwan Eiho 870
10. Kampei Taiho 890
11. Engi Tsuho 907
12. Kengen Taiho 958
- Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)