I hate to bother everyone with my request for help, but I would greatly appreciate any input on this blade. My knowledge is severely limited compared to many others on this forum. In hand it appears to be a late kamakura era blade, based on the overall sugata. The nagasa is over 33 inches in length, but it appears to be machi-okuri by about an inch, and the nakago is roughly 10.5 inches long. The blade possesses a chu-kissaki of about 1.25 inches, a shallow sori of about 0.625 inches, a thick kisane, and a low shinogi. A sugaha hamon can be seen in places, but it is very out of polish. There are a few very worn kanji on the omote side, if the blade was worn tachi style, that are nearly impossible to make out at my skill level, but the kanji on what I think would be the ura side of the nakago are fairly clear. If these are date kanji I would guess possibly 正安 Shôan 1299 or 仁安 Ninan 1166, but the blade does not look like a pre-kamakura tachi to me? Any input you may have would be greatly appreciated. I apologize for my poor pictures. Thanks.
Paul M. Evans
p.s. I have no intention of selling this blade. Thanks.