Aiyu-Sen(Taiwanese Aboriginal Boundary)
Unknown author<span style="display: none;">Unknown author</span>
circa 1930 <div style="display: none;">date QS:P,+1930-00-00T00:00:00Z/9,P1480,Q5727902</div>
Japanese book "Revised Edition Series of Japanese geography and folk culture: Vol.8" published by Seibundo-Shinkosha.