There are Ichibukin called 'Katahon', which has imprinted hallmark of 'Hon' on the right part of the tail, and 'Ryobon' which has a one on the upper right and left part, which means they are 'hon-naoshi', mended Ichibuban broken or chafed by being used long time in kin-za (an organization in charge of casting and appraising of gold during the Edo period).
裏面の右上に「本」の極印が打たれた「片本」および上部左右に二箇所打たれた「両本」と呼ばれる一分判が存在し、これは長年の流通により磨耗、破損した一分判を金座において修理した「本直し」であることを意味する。