Japan, ND (1860-1862), Oban, Manen era, 136.55 x 80.6mm / 112.8gms, mintage: 17,000 (KM-C24a.2. JNDA-9.1). Composed of 34.4% gold and 63.9% silver The obverse has largely original inking with bold characters, four clear stamps on machine cut crenulations on background, some minor scratches and traces of adhesive seen, an extremely rare offering