Description
今井八九郎が蝦夷地測量に携行した紙製の測量具で、羅針盤である。江戸時代に広く測量に用いられ、方位・方角を測った。伊能忠敬の日本図製作にも使われ(杖の先に銅あるいは真鍮製の小方儀を載せたもの)、その用途は測量から土木工事まで幅広い。
Data source
ColBase
"ColBase: Integrated Collections Database of the National Institutes for Cultural Heritage, Japan" is a service that enables a multi-database search of the collections in the four national museums (To...
Contents holder/Provider
Aggregator
National Institutes for Cultural Heritage
The National Institutes for Cultural Heritage (NICH) comprise four National Museums (Tokyo National Museum, Kyoto National Museum, Nara National Museum, and Kyushu National Museum) and two National Research Institutes for Cultural Properties (Tokyo National Research Institute for Cultural Properties, and Nara National Research Institute for Cultural Properties), as well as the International Research Centre for Intangible Cultural Heritage in the Asia-Pacific Region (IRCI) in Sakai City, for a total of seven institutions.
Last updated
July 20, 2026