An ubu machiokure katana signed nagamei, Bishu Osafune Sukesada saku, dated Eiroku (1558 - 1570) ju nen ni gatsu (February 1567). Shinogizukure, iroi mune, sakizori, slightly extended chu kissaki. Hawatare: 2 shaku 3 sun 5 bu (69.85cm or 27.5"). Motohaba: 3.18 cm. Sakihaba: 2.01 cm. Kasane: 6.53 mm. Sori 2.22 cm. Hiro suguba ko notare in nioi deki. There are ashi iri, yo, kinsuji, choji, nijuba, hako midare, nado. Hada tatsu itame moku mix, chikei, with a itame nagare and masa in the shinogiji. The temper pattern continues into the boshi which is hakikaki with a komaru kaeri. A small area of shintetsu opened up, which limits the rating that the sword could receive. There is a In first rate polish, shirasaya, and niju gold foil habaki. NBTHK Hozon kanteisho.
Because the selection of the polisher, and the habaki and shirasaya are made prior to finishing polish, this blade was given a first class restoration, and it is unfortunate that the bit of shintetsu was exposed.
This is a very
hade blade with a great deal easily available to the eye.
There were a good number of Sukesada working in Eiroku, A quick count
from the Meikan lists thirteen. 
