In Edo the money changers were divided into honryogae exchangers (16 people) who handled gold and silver exchange and finance, 'Mikumi Ryogae' (three groups of main exchangers consisting of Group Kanda, Group Mita and Group Seri) specializing in koban, chogin and zenika (copper coins), and 'Bangumi Ryogae' (Nos. 1 to 27) who traded in copper coins.
江戸では金銀両替および金融業務を行う本両替（16人）、専ら小判、丁銀、および銭貨の両替を行う三組両替（神田組・三田組・世利組）および銭貨の売買を行う番組両替（一～二十七番）に分化していった。