This is a very nice wakizashi by the Bizen smith Norimitsu (備前則光). It is signed with the ni-ji miei (two character signature) Norimitsu (則光) and is dated Bunmei gannen hachigatsu. This equates to a day in August of 1469. This cutting edge of this blade measures 21 3/8 inches or 54.3 cm. and it is slightly suriage (shortened). The moto-haba (width at the base) is 1.10 inches or 2.78 cm. The saki-haba (width at the point is 0.82 inches or 2.1 cm. It has a graceful koshir sori measuring 0.64 inches or1.62 cm.
It is in very good polish in a shirasaya with a two-piece solid silver habaki. The hamon is typical of the Bizen school of the Muromachi era in that it is a mixture of ko midare and chôji that is nioi based. There is profuse nie on and above the hamon. A feint midare utsuri can also be observed just below the shinogi. The date on this blade would put it as being made around the time of the second or third generation Norimitsu. The nakago is slightly machi-okuri and suriage. This is common with blades of this age.
The blade is in excellent condition with no flaws or problems. It is a great piece of 552 year old history from a time of intense warfare in Japan. It comes with NBTHK Tokubetsu Hozon papers attesting to the validity of the signature and the condition and quality of the blade.