In Kamakura, “Mark of the recommendation tag” used for collecting funds for building temple shrines and temples and temples carved from stone, “seal of talcum pattern” were excavated. In addition, They used a seal in the process of making excavated lacquerware in the Middle Ages. Samurais came to use flower pens as stamps due to the rapid increase in document issuance. When judging whether the document is genuine or fake, it is important evidence as well as obtaining political credibility by comparing “flower push” against it. As mentioned above, samurai began using flower stamps. In Kamakura, the proof culture as evidence such as “flower push, seal, thumbprint, nail sticker, book collection seal, baked seal” spread more.