Of the maps of Japan created by Ino Tadataka and the surveying team during the Edo period, a new copy of the entire map called "Shozu" has been confirmed.
The original copy of the small figure was burnt down, and only one duplicate copy of the three copies has been confirmed in Japan so far, so the expert who conducted the survey said, "It was a wonderful discovery, and research on how the map was made. It will be an opportunity to move forward. "
This map of Japan was donated to the Zenrin Museum in Kitakyushu City, and maps of Hokkaido, eastern Japan, and western Japan are drawn on three sheets of paper 1.5 to 2.5 meters long and 1.6 meters wide. I am.
As a result of a survey by a specialized group of the Map of Japan Society, it was judged to be a duplicate of the "small map" that was made by Tadataka Ino and the surveying team and contained three maps at a scale of 1/432,000. It was.
According to the academic society, Tadataka Ino's map of Japan has "large map", "middle map", and "small map" with different scales, and all the "genuine" submitted to the shogunate were burnt down in the Meiji era.
It is thought that the duplicates were made in the same period as the originals, and so far, only the materials held by the Tokyo National Museum, which has been designated as an important cultural property, have been confirmed in Japan as the duplicates of the three small drawings.
The materials found this time include handwritten information such as coastlines and place names, as well as explanations of how they were made, which are not found in the materials of the Tokyo National Museum.
Junko Suzuki, chief of the Map Historical Materials and Map Archives Subcommittee of the Japan Map Society, said, "I was surprised to find that the survey team of Ino Tadataka made it. It will be an opportunity for the research to proceed. "