Josh GoldA traditional Japanese martial art school with a 500-year history whose sword has a clearly demonstrable influence on the development of the AIKI KEN. This school is a composite system whose curriculum consists of various weapons including the BOKKEN, YARI, NAGINATA, etc. Morihei Ueshiba formally enrolled in this classical school along with Zenzaburo AKAZAWA in May 1937 by signing with blood oaths (KEPPAN). The influence of the Kashima Shinto-ryu sword in aikido can be seen by a comparison of the ichi no tachi sword of this school and the first kumitachi of the AIKI KEN as taught by Morihiro SAITO; the two are virtually identical. Other similar movements can be seen in fragmented form in the sword practices of Saito. The techniques of this school were demonstrated in the AIKI NEWS FRIENDSHIP DEMONSTRATION III in 1987.
are you sure it was not kashima shin ryu. I think ichi no tachi belongs to kashima shin ryu in stead of kashima shinto ryu.