The Imagawa akatori (今川赤鳥紋) depicts a red bird with six feathers or "teeth" and a hole at the top through which a cord could be passed. It served as the battle standard (馬印) of the Imagawa, but was not used as a family crest (家紋).
The Imagawa (今川氏) were a prominent warrior family of the Muromachi period (1333–1568), a branch of the prestigious Seiwa Genji line of the Ashikaga clan...