2 Bu 'Bunsei Nibukin' regular script

The Bunsei Nibukin was produced under the fiscal management of Rōjū Mizuno Tadakiyo, whose administration pursued a deliberate policy of currency debasement to address chronic shogunal budget shortfalls. At 56.3% gold, these two-bu pieces represented a significant reduction from their Bunka-era predecessors, and the Kinza — the Edo gold mint operating under strict hereditary guild control — adjusted alloy composition on direct bakufu instruction rather than through any market mechanism.

The "regular script" designation distinguishes the calligraphic style of the mint stamp from later issue variants, a distinction that matters for attribution but rarely for value differentials between types.