It was oval called kobangata and on the surface Gosan no Kiri mon (paulownia patterns) were engraved in fan-shaped frame on the top and the bottom and at the top center '壹两, or ichi ryo (one ryo)' was engraved and at the bottom a hallmark, '光次, or Koji (Kao written seal mark)', was engraved.
形状は、小判形と呼ばれる楕円形で表面には上下に扇枠に囲まれた桐紋（ごさんのきり）、中央上部に「壹两」下部に「光次（花押）」の極印が打たれている。