Since the half part of the mark 'Shinryu' (Tang), which was used for a tally impression, remains on one of its edges, it is also called the Shinryuhanin-bon (Copybook of calligraphy with the half seal of the God and Dragon).
割り印として使われた「神龍(唐)」の印が、端に半分残っているので神龍半印本ともいわれる。