Revised edition of the Shin Tokkun Series, a learning text specifically focused on the fusion of figures and numbers. - Title: 19 Fusion of Figures and Numbers - Series Name: Shin Tokkun Series - Revised Edition: Revised Edition - Educational Book Number: Kyoiku Tosho 21 - Price: 1,100 yen Although opened once, it is unused. For those who understand that this is a used item.