戸隠流 武道 秘伝賞 Togakure-ryu Budo Hiden-sho
戸隠流忍法体術 [隠し武器] - Togakure-ryu Ninpo Taijutsu [Hidden Weapons] by Soke Hatsumi Masaaki.
Shinobi Shozoku [Ninjutsu no Kenkyu, Yumio Nawa].
another illustration of a mizugumo [Ninjutsu no Kenkyu, Yumio Nawa]
甲賀流忍具 - 水 クモ. Koka-ryu Ningu - mizugumo (water spider). [Bansenshukai, Fujibayashi Yasutake, 1676]
Hatsumi Masaaki demonstrating Masaki-ryu manrikigusari
![Shinobi Shozoku [Ninjutsu no Kenkyu, Yumio Nawa].](http://25.media.tumblr.com/tumblr_llvdrfxCWN1qj1yhro1_1280.png)
![another illustration of a mizugumo [Ninjutsu no Kenkyu, Yumio Nawa]](http://24.media.tumblr.com/tumblr_lltoz2OCRS1qj1yhro1_400.png)
![甲賀流忍具 - 水 クモ. Koka-ryu Ningu - mizugumo (water spider). [Bansenshukai, Fujibayashi Yasutake, 1676]](http://25.media.tumblr.com/tumblr_llto0rPSlv1qj1yhro1_400.png)
