Etymology and distribution of 鍔坂.

Tsubasaka 【鍔坂】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Kagoshima-ken Ooshima-gun Tokunoshima-chou . Terrain . "Sawa" is added to the payment which is the surname of Amagi archipelago of Kagoshima-ken . Estimated at the time of returning to Japan in 1953. 納 Osame reference.