Meanwhile, as Nishu gin silver coins contained about four thirds of silver in spite that its face value was half of ichibu-gin silver, the bakufu decided to limit the use of those coins to international trade because it could not emit a large quantity of good money, accustomed to emitting bad money for the purpose of acquiring marginal gain.
一方、二朱銀については一分銀の半分の額面にもかかわらず、約4/3倍の含有銀量であり、出目獲得を目的とした悪貨の発行に慣れた幕府にとって良貨は多量に発行できるものでなかったため、貿易取引に限定するものとした。