Japanese coin/token

The image shows an oval-shaped, ancient Japanese coin with a square hole in the center, made of metal and embossed with Japanese characters on the upper and lower portions. The edges of the coin are slightly raised, and the surface has a worn, textured appearance, indicating its age. The coin's patina suggests it is made from bronze or a similar alloy, common in historical currency from Japan. On the left side, small numerals and dots are inscribed, possibly referencing catalog information. The intricate design and historical significance of such coins can reflect the economic and cultural aspects of the era in which it was circulated.