Etymology and distribution of 指物.

Sashimono 【指物】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

North Sea degree, Niigata-ken , Kanagawa-ken . 所沢 surname. Niigata-ken Niigata-shi It was in the Edo period in the river between Nishika-ku. I tell him I came from Nagano-ken in the Edo era. 所沢 Shozawa reference.