Four Chinese ideograms read top to bottom, right to left.
Obverse script
Chinese (traditional, regular
script)
Obverse lettering
永
通 寶
曆 (Translation: Yong Li Tong Bao Yongli (Emperor) / Universal currency)
Reverse description
Blank (uniface).
Reverse script
Reverse lettering
Edge
Smooth.
Mint
Mintage
ND
(1646-1659) - Hartill#21.45: Tong with one dot; large size - ND
(1646-1659) - Hartill#21.46: Tong with one dot; small size - ND
(1646-1659) - Hartill#21.50: Tong with two dots; Er Bao - ND
(1646-1659) - Hartill#21.54: Tong with two dots; Zhen Bao -