| Date | 1644 |
|---|---|
| Categories | Geometric: Circle (Many Plain), Arrangement: Grid, Arrangement: In Pale (Same), Color: Black on Blue |
| Sources | Xavid “Kihō” Pretzer. O-umajirushi: A 17th-Century Compendium of Samurai Heraldry. The Academy of the Four Directions. 2015. pg. 15. |