Chuhichi NAGASAKIYA, the head of itowappunakama (thread tally union) in Kyoto requested minting of the coin to bakufu with his members of the union, and he was assigned to mint ozeni.
京都の糸割符年寄り、長崎屋忠七がその糸割符仲間と伴に鋳銭を幕府に願い出て、大銭の鋳造を請け負うこととなった。