Therefore, in October 1718, the system was changed to be based on the silver amount contained where addition was made to shotoku-gin and keicho-gin by the following rate: Genroku-gin by 25%, Futatsuho-gin by 60%, Eiji-gin by 100%, Mitsuho-gin by 150% Yotsuho-gin by 300%, and it confirmed the market. 享保3年(1718年)閏10月には正徳銀、慶長銀に対し元禄銀は2割5分増、二ツ宝銀は6割増、永字銀10割増、三ツ宝銀15割増、四ツ宝銀30割増と含有銀量に基づくものに変更となり市場を追認する形となった。 |