Etymology and distribution of 伊賀棒.

Igabou 【伊賀棒】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Hiroshima-ken Hiroshima-shi , Toukyou-to . 岩国 surname is given. 岩国 Iwakuni reference. Shimane-ken western part (formerly Iwami) is a place name with a record since the Asuka period.