The Tokyo National Museum is, unsurprisingly, one of the best places to see Japanese works of art and historical artifacts.
In the case of Mikazuki Munechika, marking called uchi no ke, shaped like crescent moons, were formed.
Now an officially designated national treasure, the sword has become the property of the Tokyo National Museum.
The special slice of katana history will be on display until October 15.
Museum informationTokyo National Museum / 東京国立博物館Address:Tokyo-to, Taito-ku, Ueno Koen 13-9東京都台東区上野公園13-9Open 9:30 a.m.-5 p.m.