Wakizashi Iaito Minosaka Jidai Koshirae noCancellation It is sometimes said that

It is sometimes said that this expression refers to the birth/creation of harmony through the practice of Budo

and notably in the Takeda clan Kamon (4 diamond shapes disposed in a diamon shape)

Minosaka Hirata Tsuba - TM014

you should go for the smallest one

Wakizashi Iaito Minosaka Jidai Koshirae noCancellation It is sometimes said thatThe Jidai Koshirae is a high end Wakizashi, fully order made, crafted from scratch in Japan with a sand casted bubble free zinc aluminum alloy blade. This model has a "standard" blade for an average weight. It results in a classic Wakizashi balance and is an excellent Wakizashi for beginners and intermediates alike, who have enough budget to acquire a weapon of higher quality with customization. Within the Minosaka lineup, the Jidai model is an entry