Ostravské muzeum

https://www.ostrmuz.cz/website/imagemenu/exhibitions/webpage%5B2%5D/webpage/webpage%5B6%5D/

Hanko

A hand-engraved personal seal. Japanese people often use their personal seal instead of a signature on official documents. Today, these seals are made from plastic or wood combined with rubber. In earlier times, however, materials such as animal bone, marble and basalt were used.