Sanada's Six Coins T-Shirt

The Sanada Roku Mon Sen or Zenimon is a family crest. It is referred to as "Sanada Zen" in Hei-mon Kakan, Mon-ten, and Kadomon Dai-zukan; "Sanada Roku Mon Zen" in Mon no Kokorozashi, Mon no Izumi, and Nihon no Monsho; "Shinano Sanada Roku Mon Renzen" in Sadamon no Kenkyu; and "Roku Renzen" in Kadomon no Jiten. Mumon-sen refers to coins with only a square hole, like this design. Mumon-sen is particularly famous for the Sanada clan (Matsushiro Domain in Shinano Province), and its meaning is related to the six Buddhist realms. The six realms are hell, hungry spirits, animals, asura, humans, and heaven, and in each realm, there is a Jizo Bodhisattva who can guide beings to enlightenment. The six coins represent the treasure offered to J