The Honjō Masamune
Region — where it (roughly) is
Land & claims · BLM · live
The story
It was the finest sword Japan had — a blade by the greatest swordsmith the country ever produced — and it disappeared into the hands of a man whose name no one has ever been able to find.
The Honjō Masamune is the masterwork at the center of this loss: the finest surviving katana attributed to Masamune, the legendary master smith whose name is synonymous with the height of Japanese sword-making. Its standing was not a matter of opinion. In 1939 it was formally designated a Japanese National Treasure, an object of the highest cultural rank, the kind of blade that carries centuries of artistry and history in its steel.
Then came the end of the war, and with it the disarmament of Japan. In January 1946, the sword was surrendered to United States occupation forces, handed over as part of the general collection of weapons. The record says it was given up at the Mejiro police station in Tokyo. And the record says the man who received it was a "Sgt. Coldy Bimore" — a name that has defeated every searcher since, almost certainly a garbled phonetic rendering of an American name that was written down wrong and can no longer be reconstructed.
From that moment, the trail ends. The greatest of Masamune's swords passed from the Mejiro station into the possession of a sergeant whose true identity is unknown, and it was never seen or recovered again. A National Treasure simply vanished into the postwar confusion, carried off by a man history cannot name.
The search has never truly stopped. Japan's Agency for Cultural Affairs and the NBTHK, the sword-preservation society, have kept the case alive, watching for any sign that the blade still exists somewhere in the world. But decades on, the Honjō Masamune remains lost — a peerless sword, a phantom name, and a handover at a Tokyo police station that turned out to be the last anyone ever saw of it.
Fact vs. legend: The Honjō Masamune's status as a National Treasure (designated 1939), its surrender to US occupation forces at Mejiro in January 1946 to a "Sgt. Coldy Bimore" (a likely garbled name), and its disappearance are documented and still tracked by Japan's Agency for Cultural Affairs and the NBTHK. The sword remains lost. Search area: The point marks last seen at Mejiro police station, Toshima, Tokyo, Japan (surrendered to US occupation forces, January 1946) — the search area or landmark, not the treasure, whose exact location is unknown.