I just received my two swords back from NBTHK shinsa, with new polish by Bob Benson. One sword is by Bitchu Yasuhiro with Hozon papers. I'll post pictures in the next couple days for your enjoyment. The other is a mumei daito, which is the subject of the kantei here. This daito also received Hozon papers. I will let this run for one week before posting the shinsa attribution. Any/all ideas are very welcome and much appreciated.
Nagasa: 28"
Sori: 3/4".
EDIT: Additional info
Motohaba: 2.8cm
Motokasane: 7.5mm
Sakihaba: 2cm
Sakikasane: 5.3mm
Tsukurikomi: Iori mune. Because of the bohi, I can't tell you anything regarding the shinogiji.
Hada: prominently and primarily o mokume, with some masame as Kunitaro san noted. No utsuri is seen.
No muneyaki.
Hamon: Noi deki suguha, with hada pattern clearly seen in the hamon, a lot of long, bright kinsuji and long, sweeping, dramatic sunagashi, especially in the monouchi. The hamon is wide towards the nakago and the kissaki, and thin (~3-4mm) in the 1/4 middle of the blade.
Boshi: The boshi is all intact and is hakikake - no kaeri that I can see.
If I am missing important pictures, please let me know.
Regards,
Hoanh