The currency (koban and chogin[collective term of silver]) in the Keicho Period was issued by such process as follows, goldsmiths got bare metal by themselves calling it 'Temaebuki', casting it into the shape of currency, submitting it to kin-za (an organization in charge of casting and appraising of gold during the Edo period), then, hallmark was imprinted on it to issue it.
慶長期の貨幣すなわち（小判および丁銀）は「手前吹き」と称して、金細工師が自己責任で地金を入手し、貨幣の形に加工した上で、金座に納め、極印が打たれ発行される形式であった。