The coin in Keicho era (koban and chogin) was called "temaefuki"where maker of gold and silver handiworks obtained the metal by himself, delivered to kinza and ginza after processing it in the form of coin, and issued after the hallmarks were inscribed.
慶長期の貨幣（小判および丁銀）は「手前吹き」と称して、金銀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、金座および銀座に納め、極印が打たれ発行される形式である。