Two rounded tile

[Maruni Futabiki] Hikiryo-mon and Hikiryo-mon were originally from makuzome of makumon that had been around in the Genpei era. The military curtain on the battlefield was made by sewing five pieces of cloth together, and the cloth dyed black in the middle of the cloth is called Nakaguro. This was Hitotsubashi-ryo . The Futsushiki-ryo is made of white, black, white, black, and white cloth from above (omitted); however, there is no established theory about what Hikiryo-mon was designed. (Source: "Read the Family Crest" by Toshio NOSAKA)