宣统二年四月十六日清庭颁布了《币制则例》，宣示国币名曰“圆”，暂就银本位。并以数理：“割圆得弧角，量角折变分厘。” 定圆以下为角、分、厘。各以十进，永为定价。四月二十五日度支部进呈《币制则例》中的各色银币样，并在奏折中呈明“并将各种铜币成色，份量拟定开铸”。 On April 16, two years ago, Xuantong promulgated the “Rules of Currency System” on the 16th of Xuan Tong, announcing the national currency “Yuan” and temporarily assuming the silver standard. And to mathematical: “cut the arc was obtained, the amount of angle change points PCT.” Fixed round the following angle, minutes, PCT. Each in ten, forever pricing. On April 25, the branch went into the colored coin samples in the “Coinage Rules” and stated “in the memorials” that the various colored copper coins should be colored and their contents should be drafted.