Kimishima daisokuryougaku

Kimishima daisokuryougaku

Kimishima daisokuryougaku

Kimishima daisokuryougaku

Kimishima sokuryougaku

Kimishima sokuryougaku

Dai sokuryougaku

Sokuryougaku

Sokuryougaku

Sokuryougaku

Sokuryougaku

測量学梯

Kani sokuryougaku

Kani sokuryougaku

Kani sokuryougaku

Kani sokuryougaku

Kani sokuryougaku

Survey Map of the Etorofu Island

Survey Map of Okushiri Island

国後島測量原図

奥尻島測量原図

Survey Map of Rebun and Rishiri Islands

志古丹島測量原図

Sokuryou

Doboku kougaku sokuryou hen