This is a cord-wrapped slung sword (Ito-maki-no tachi); a tachi is a sword with a blade length normally longer than 60 centimetres and is worn with the cutting edge down. The scabbard of this example is decorated in lacquer of the type known as nashiji (pear-skin). It is decorated with arabesque scrolling and the paulownia leaf crest, the paulownia plant being associated with the ruling Tokugawa shoguns of the Edo period (1600-1868). The metal fittings are all from the Goto School and are made of shakudō (an alloy of gold and copper patinated to a rich black colour) inlaid with gold. The section of the scabbard near the suspension cords is wrapped with silk brocades to prevent abrasion of the expensive lacquer when the sword is worn with full armour. This style of slung sword mounting, with decoration of family badges, was worn only by senior samurai. This example was probably assembled around 1750-1800.

The tachi blade is signed ‘Bishu Osafune Morimitsu’ and dates to around 1420. This is an excellent example of a blade of this period from Bizen province. There is fine and elegant graining along the blade, which comes from the process of folding the steel during the manufacture of the blade. The tempered edge of the blade, which has been heavily shortened (perhaps by as much as 10 centimetres), has a strong undulating wavy pattern of clove flowers (gunome choji-hamon).

The sword came from the collection of Sir Claude MacDonald, who was the first fully accredited British ambassador to Japan from 1905 to 1912. He had a particular interest in swords. According to V&A records, this blade was given to him by ‘Prince Katsura’. Sir Claude’s widow, Lady Ethel MacDonald, later gave the V&A four splendid swords. (see references for another example).