Reference
Note:
Barker states that the diminutive copies of the Đại Hòa Thông Bao coins were not issued during the reign of Lê Nhân Tông, but some time later.
Reference
Note:
Thierry sees this coin as 'inspired by' the coins of the Đại Hòa era, but assigns it to the wide period from the 11th to the 16th century (though clearly it should post-date 1453)
Reference
Note:
Hartil considers these coins to belong to the An Phap group which he assigns to the reign of the period of Mac rule in the north, c. 1540-90. He notes that they are shown in the book Chinka Kohokan of 1729 so cannot be later than that.