This 4 Mon copper coin was issued during the Bunky? era (1863–1868) in Japan, catalogued among the Tokugawa Shogunate’s late feudal coinage. Cast in copper alloy with a diameter of 27 mm, the coin follows the traditional round form with a square central hole, facilitating stringing for everyday transactions. The obverse bears the inscription (Bunky? Eih?), signifying its minting authority and eternal circulation. The reverse features a distinctive wave pattern, symbolizing continuity and prosperity, an aesthetic element that links the coin to Japanese cultural symbolism of water and flow. This issue reflects Japan’s economic landscape in the turbulent years preceding the Meiji Restoration, when traditional cast coinage coexisted with early modern reforms. Produced by casting technique, the coin exemplifies the utilitarian yet artistic character of Edo-period monetary design, representing both historical value and cultural heritage. Estimate "$40 – 80”.

Circulated, with patina and casting marks, minor surface wear but inscriptions and wave pattern remain clear.