Emperor : Japanese coins of this period cannot be assigned to exact rulers.
Date : The type was issued between 1769 and 1860.
Denomination : Bronze 4 mon.
Reference : Hartill-25.54
Size : 28.1 mm. Weight : 4.89 grams.
Grade : VF.
Obverse : "KUAN EI TSU HO".
Reverse : Pattern of 11 waves.