Examples of the type
Private collection
ND (1742-1752) 統 – (en) concave star(concave dot) at rev left
30.8 mm • 5.75 g
ND (1742-1752) 統 – (en) concave star(concave dot) at rev left
30.8 mm • 5.75 g
爪マ頭通背左陰星
30.8mm～31.0mm
Thickness;0.8mm～1.1mm